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APES Midterm Review cloned 1/16/2022

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UNIT 1: THE LIVING WORLD ECOSYSTEMS

Environmental Problems, Their Causes & Sustainability - Chapter 1 & 25
  • Understand concept and examples of the Tragedy of the Commons
  • Know and understand the 3 components of sustainability (solar energy, chemical cycling, biodiversity)
  • Understand ecological footprints, what they measure, the factors that contribute, etc.
  • Understand biocapacity
  • Know developed vs. developing countries (be able to give examples of countries)
  • Understand affluenza and its advantages/disadvantages
  • Examples of point vs. nonpoint pollution
  • Know the 3 major worldviews (environmental wisdom, stewardship, planetary management)
  • Know and be able to give examples of renewable vs. nonrenewable vs. perpetual resources
  • Difference between reusing and recycling
  • Understand the implications of poverty
Chapter 1 Practice Problems
Question 1
1.

Pollution from which of the following is an example of point source pollution?

Question 2
2.

Countries such as China increasingly have populations that are attaining a middle-class status. This has led to all of the following EXCEPT

Use the graphs below to answer the next four questions.

Question 3
3.

India's per capita ecological footprint is approximately

Question 4
4.

In the year 2000, what was the earth's ecological footprint?

Question 5
5.

All of the following ways would help reduce the projected ecological footprint EXCEPT

Question 6
6.

From the bar graph you can infer that Africa's ecological footprint is no greater than

Question 7
7.

Examples of the three principles of sustainability include:

1. Solar energy, which enables plants to photosynthesize and helps humans and helps humans produce electricity
2. Organisms and their ecosystems, the natural services they provide, and the ability of organisms to adapt to changes in their environment
3. Cultural changes such as the agricultural revolution and the industrial revolution, which in many ways enhanced human living conditions but had negative effects on the environment
4. The continuous cycling of chemicals, without which life would not exist

Use the graph at right to answer the next three questions.
Question 8
8.

In what year did the human population reach 6 billion?

Question 9
9.

The dotted line on the graph illustrates which type of growth?

Question 10
10.

Both dotted lines assume that population will

Question 11
11.

Question 12
12.

Solutions to environmental problems are not always easy. This is because

Question 13
13.

Which of the below is an example of the tragedy of the commons?

Chapter 25 Practice Questions
Question 14
14.

What one believes about what is right or wrong in our behavior toward the environment is

Question 15
15.

We will probably not run out of resources, but they should not be wasted best fits in which environmental worldview?

Question 16
16.

Which of the following is not a guideline for sustain­able living?

Question 17
17.

The idea that science will solve all our problems best describes which mental trap?

Question 18
18.

All of the following are ways to attain a more sustain­able world EXCEPT

Question 19
19.

Which of the below is NOT an economic tool that could be used to bring about a sustainable environmental revolution?

Question 20
20.

Which of the environmental worldviews below is incorrectly paired with its focus?

Science, Matter, Energy, and Systems – Chapter 2
  • Understand the basic chemistry review (matter, atoms, isotopes, pH)
  • Understand the basic biology review (organic compounds, cells)
  • Understand matter quality and energy quality including the Law of Conservation and the Laws of Thermodynamics
  • Understand nuclear changes (radioactive decay, fission, fusion)
  • Understand systems and feedback loops
Chapter 2 Practice questions
Use the graphs of the Chesapeake Bay, Maryland, striped bass and blue crab population data below to answer the next question.

1
Question 22
22.

Which of the below is an example of a high-quality energy source?

Question 23
23.

The energy you use to walk from point A to point B is a result of several energy transformations from one form to another beginning with energy from the sun. The net result of these transformations is

Question 24
24.

The warming of the oceans causing less carbon dioxide to be soluble in them, and at the same time leaving more carbon dioxide in the atmosphere causing an increased warming of the atmosphere, is an example of a

Question 25
25.

A scientist made the following statement in 2008:
“The striped bass Young of the Year (YOY) index for 2008, an annual measurement of the number of juvenile striped bass taken in the Marlyand portion of the Chasapeake Bay, is one of the lowest recorded since data was recorded beginning in 1990. The 2008 YOY index for striped bass was 3.2 while the long-term average is 11.7.” (Kennebec Journal Morning Sentinel; “CHesapeake striped bass population down for ‘08” 10/29/2008; http://morningsentinel.mainetoday.com/sports/stories/227216717.html)

This statement is an example of

Question 26
26.

Which of the below organic molecules is incorrectly paired with its function or role?

Question 27
27.

The installation of ice booms on the Niagara River may well have changed the erosion pattern along the river. The irreversible loss of an island from over 100 acres in size to less than 3 acres is an example of

The next five questions refer to the description of an experiment below.
Ecologists designed an experiment to determine whether nitrates or phosphates are more limiting to algae growth. A lake in Canada (Lake 226) was di­vided into two equal-sized sections by a vinyl curtain. Each sub-basin of the lake was then fertilized, one with nitrates and carbon, and the other with phos­phates, nitrates, and carbon. The amount of phyto­plankton in the lake was then measured in each side, with the side of the lake with phosphates added show­ing a greater rate of phytoplankton growth.
Question 28
28.

Frequently, studies in nature are difficult to set up and may lack some aspects of more traditional laboratory based experiments. What element of this experiment could be considered to be lacking?

Question 29
29.

Which of the below is the independent variable in this experiment?

Question 30
30.

Identify the constants in this experiment.

Question 31
31.

Which of the below would be a valid hypothesis for this experiment?

Question 32
32.

What concept below best describes the process being studied in this experiment?

Ecosystems: What are They and How do They Work? – Chapter 3
  • Know the major components of an ecosystem (organisms, populations, communities, ecosystems, biosphere)
  • Understand trophic levels and the roles of organisms within trophic levels (producers, autotrophs, consumers, heterotrophs, primary consumers, secondary consumers, tertiary consumers, herbivores, carnivores, omnivores)
  • Understand the flow of energy through an energy pyramid (i.e. the 10% rule)
  • Understand food webs
Chapter 3 Practice Questions
Question 33
33.

A tipping point in the disappearance of the tropical rain forests would be

Question 34
34.

Which is NOT an important ecological role of insects?

The next four questions refer to the compounds listed below.
A. Nitrogen gas (N2)
B. Oxygen gas (O2)
C. Water (H2O)
D. Phosphate (PO43-)
E. Methane (CH4)
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Question 39
39.

Organisms live within a range of tolerance that deter­mines where they live. Which of the below is NOT a range of tolerance?

Question 40
40.

This question refers to the data in the table shown.


Applying the 10% rule, if a shrew living in a tropical rain forest has a daily requirement of 500 Cal., how many square meters of rain forest are needed to sup­port one shrew that feeds only on snails which are pri­mary consumers?

Question 41
41.

The end product(s) of the wood in a log being decom­posed by fungi is

Question 42
42.

Which of the below is NOT a human intervention in the nitrogen cycle?

Question 43
43.

The phosphorus cycle includes all of the following EXCEPT it

Climate and Biodiversity/Aquatic Biodiversity - Chapters 7 & 8
  • Understand difference between weather and climate
  • Understand importance of natural greenhouse effect
  • Understand what factors influence biomes (temp, precip, latitude, elevation)
  • Major characteristics of each terrestrial biome
  • Know examples of human impact on biomes
  • Mutualistic symbiosis that make up coral reefs
  • Ecological/economic services of coral reefs
  • Threats to coral reefs & causes of coral bleaching
  • Ecological/economic services of both marine and freshwater ecosystems
  • Abiotic factors that influence aquatic ecosystems
  • Biotic factors and examples (plankton, nekton, benthos, decomposers)
  • Types of marine zones and their importance (coastal zone, estuaries, wetlands, marshes, seagrass beds, mangrove forests, intertidal zones, open ocean, deep ocean)
  • Human impact on the areas noted above
  • Be able to describe and identify on a diagram the zones for open ocean (photic, bathyal, abyssal)
  • Be able to describe/identify on a diagram the zones for freshwater ecosystems (littoral, limnetic, benthic)
  • Oligotrophic vs. eutrophic lakes
  • Be able to describe/identify zones of rivers and streams (source, transition, flood zones)
Chapter 7 Practice Questions
Question 44
44.

Long-term differences in which two variables are the primary determinants of climate?

Question 45
45.

Which of the below is an example of a change in weather?

The next group of questions refer to this diagram of surface currents in the oceans. Indicate answer with the corresponding letter from the map.

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Question 50
50.

As one climbs a mountain, the elevation change causes a change in biomes. Which of the below is a change caused by elevation?

Question 51
51.

Which of the below is a true statement about biomes?

The next three questions refer to the climate graphs below. The red line represents temperature and the blue represents precipitation.

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Question 55
55.

Which of the below is NOT an adaptation found in plants living in the desert?

Chapter 8 Practice Questions
Question 56
56.

Which element below will be most helpful for reducing erosion from wave action to the coastline of an island in the ocean?

Question 57
57.

Zooplankton are animal larvae that

I. are primary consumers that feed on phytoplankton.
II. are secondary consumers that feed on other zooplankton.
III. are photosynthetic bacteria responsible for most of the ocean surface's primary productivity.

Question 58
58.

Which of the below factors is NOT a primary determining factor for whether an organism is found on the surface or in the middle of the water column in the ocean?

Question 59
59.

Which area below will have the lowest net primary productivity/km2?

Question 60
60.

The primary force responsible for tidal action is the

Question 61
61.

Which of the below is the correct path that a grain of sand would take as it is eroded from a mountain, carried downstream, and deposited on the ocean floor?

Question 62
62.

Where are photosynthetic organisms least likely to be found?

Question 63
63.

Which area of the oceans is most used by people for recreation?

The next four questions refer to the human impacts on ecosystems listed below. (Indicate with appropriate letter)
A. Coral reef damage
B. Overfishing
C. Coastal development
D. Cultural eutrophication from release of excess nutrients
E. Population growth and burning of fossil fuels
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UNIT 2: BIODIVERSITY

Biodiversity and Evolution - Chapter 4
  • Understand the components of biodiversity
  • Functional diversity
  • Genetic diversity
  • Ecological diversity
  • Species diversity
  • Understand & be able to interpret the indices use to measure biodiversity
  • species richness
  • species evenness
  • Understand the Theory of Evolution by natural selection (mutations, adaptations, fitness in environment)
  • Understand how species evolve (speciation, geographic isolation, reproductive isolation)
  • Convergent vs. divergent evolution
  • Understand difference between background extinction and mass extinction
  • Understand how evolution & extinction affects biodiversity
  • Generalist vs specialist species
  • Roles that species play (native, nonnative, indicator, keystone, foundation)
  • Understand GPP and NPP and be able to do associated calculations
Chapter 4 Practice Questions
The next three questions refer to this diagram.
1
1
1
Question 71
71.

Which of the choices below is the best summary of evolution?

Question 72
72.

Keystone species such as alligators in the Southeast U.S. have an important role and effect on their envi­ronment through

Question 73
73.
Question 74
74.
The next four questions refer to the terms below.
A. indicator species
B. keystone species
C. foundation species
D. native species
E. specialist species
1
1
1
1
Question 79
79.

Protists are best described as

Question 80
80.

Which of the below are mechanisms of speciation?

I. Reproductive isolation
II. Mutation
III. Natural selection

Question 81
81.

The best example of an endemic species is

UNIT 3: POPULATIONS

Biodiversity, Species Interactions, and Population Control - Chapter 5
  • Know and understand examples of species interactions (competition, predation, parasitism, mutualism, commensalism)
  • Understand how species avoid competition (niches, resource partitioning)
  • Understand difference between fundamental and realized niche
  • Understand predator-prey relationships including adaptations and coevolution
  • Understand and differentiate between primary ecological succession and secondary ecological succession


Population Dynamics - Chapter 5 (cont from previous unit)
  • Understand what limits population size
  • Density dependent limiting factors vs. density independent limiting factors
  • Understand J-shaped and s-shaped curves and carrying capacity
  • r-selected vs. K-selected species
  • Understand cycles of population booms and crashes (think of your hare/lynx lab)
  • Understand survivorship curves
Chapter 5 Practice Questions
The next group of questions refer to the species interactions below.
a. Interspecific competition
b. Predation
c. Parasitism
d. Mutualism
e. Commensalism
1
1
1
1
1
The next two questions refer to the graph below of an otter population off the coast of California.

Question 87
87.

What generalized trend can be made from 1983 to
2007 from this graph?

Question 88
88.

What is the percent change in the otter population
from 1995 to 2000?

Question 89
89.

Which of the following is a good example of coevolution?

Question 90
90.

Which of the following has NOT contributed to the explosion of the white-tailed deer population?

Question 91
91.

Which point on the curve above reflects the selection most like that of an elephant, a K-selected species that has reached its carrying capacity?

Question 92
92.

Which of the below is undergoing secondary succession?

Question 93
93.

Which of the below is an example of density dependent population control?

Question 94
94.

When does a tipping point occur?

Human Population and Its Impact – Chapter 6
  • U.S. population size (330 million)
  • World population size (7.9 billion as of Nov. 2021)
  • Carrying capacity vs. cultural carrying capacity
  • Population Growth Rate (PGR) - % PGR = (birth rate – death rate)/10
  • Population Change = (births + immigration) – (deaths + emigration)
  • Understand the Rule of 70 and how to use it
  • Crude birth and death rates are based per 1,000 people in a population
  • Most populous countries
  • Replacement-level fertility rate
  • Total fertility rate (TFR)
  • Factors affecting birth and fertility rates (education, infant mortality, contraception, child labor, poverty, etc)
  • Understand/be able to interpret population age structures
  • General population dynamics in developing vs. developed countries
  • Concerns with aging populations
  • Demographic transition stages and be able to interpret demographic transition chart
  • Solutions to population size (family planning, women’s rights/education, reducing poverty)
Chapter 6 Practice Questions

UNIT 5: LAND AND WATER USE

Food Production and the Environment - Chapter 12
  • Undernutrition vs. malnutrition vs. overnutrition and effects
  • Primary food sources for world’s population
  • High-input vs. low-input agriculture
  • Types of agriculture and pros/cons of each:
  • Traditional subsistence
  • Traditional intensive
  • Plantation
  • Industrialized
  • Types of interplanting and pros/cons of each:
  • Polyvarietal, Intercropping, Agroforestry, Polyculture
  • Environmental effects of industrialized agriculture
  • Pros/cons of GMOs, organic agriculture, Animal feedlots, Chemical pesticides
  • 1st Green revolution & 2nd Green revolution
  • Gene revolution (GMOs)
  • Integrated Pest Management (IPM)
  • Regenerative farming
  • What is it?, Examples of practices, Climate benefit
  • Soil
  • Identify and know the properties of different soil horizons
  • Identify and know the properties of soil components
  • Clay, Silt, Sand
  • Be able to use the Soil Texture Triangle
Chapter 12 Practice Questions
Question 95
95.

Industrialized meat production has harmful environmental consequences. These include all of the following EXCEPT

Question 96
96.

Which of the following techniques helps to limit soil erosion?

Question 97
97.

Which best describes genetically modified crops (GMOs)?

Question 98
98.

One way that farmers can help to reduce soil erosion is by using soil conservation methods. Which of the following is an example of a soil conservation method?

Question 99
99.

Which of the following would be a disadvantage to using pesticides?

Question 100
100.

Which is the best example of persistence?

Question 101
101.

The following practices are used to grow organic crops EXCEPT

Question 102
102.

A method of using biological control to control pests is to

Question 103
103.
Water Resources - Chapter 13
  • Distribution of Earth’s water and freshwater availability - largest to smallest sources
  • Groundwater - zone of saturation, water table, aquifers (natural recharge vs. lateral recharge)
  • Surface water - watershed delineation, surface runoff, reliable runoff
  • Human water usage - domestic, agricultural, virtual water
  • Freshwater shortages
  • Causes
  • Locations - uneven global distribution of water resources
  • Problems with using groundwater - over pumping aquifers, etc.
  • Expanding surface water resources -
  • Dams/reservoirs, advantages vs disadvantages
  • Water Transfer - Aral Sea Case Study
  • Desalination
  • How can we use freshwater more sustainably? - agriculture, industry, homes
  • Threat of flooding - can we reduce the risks?
Fertilizers from agricultural fields
Smoke from an industrial plant smokestack
a decrease in environmental impact as residents become increasingly aware of the effects of pollution.
less arable land available for farming.
two-thirds of the world's most polluted cities being in China.
equal to China's ecological footprint.
1/10 of China's ecological footprint.
2X China's ecological footprint.
1 earth
0.5 earth
recycling nonrenewable metallic resources.
converting open-access resources to private ownership.
using shared resources at rates well below their estimated sustainable yields.
20%.
26%.
1 and 2
1, 2, and 3
1, 2, and 4
1, 3, and 4
All of the above
1000 AD
2000 AD
Inverse
Logistic
stabilitize.
collapse.
Refer to the figure to answer this question.


The figure illustrates

I. The conservation of energy.
II. A cycle.
III. The conservation of matter.
I, II, and III
Laws must always be written to solve the environmental problems.
Any solution has both advantages and disadvantages.
There is only one correct answer to environmental problems.
Individuals catching their legal limit of fish on a daily basis
A large storm smothering a large oyster bed with a new sand bar
Shrimp boats accidentally catching turtles in their nets
environmental law.
consumerism.
Free market
Spaceship Earth
Repair ecological damage that we have caused
Help reduce the earth's capacity for self-repair
Faith and simple, easy answers
Blind technological optimism
use energy-efficient appliances and temperature control systems.
use mass transit, bicycle, or walk whenever possible.
buy food grown within 200 miles of where they are purchased.
Micro-lending
Green subsidies
Biocentric-Stewardship
Anthropocentric-Planetary management
Biosphere-Stewardship
Question 21
21.

What might be one possible reason for the greater fluctuations in the blue crab population?

Gasoline used to power automobiles
Atmospheric oxygen gas that humans need to survive
Wood from a fallen tree used to keep a campfire burning on a cold night
A decrease in entropy.
A loss of energy.
Fewer electrons.
Natural law.
Positive feedback system.
Scientific principle of sustainability.
A limitation of science in that actual populations are difficult to measure.
Possible human bias research introduced into scientific studies.
A scientific statement that attempts to answer ethical questions of overfishing.
An example of how a theory can become a law over time.
Starch-complex carbohydrate for energy storage
Methane-component of natural gas
DDT-chlorinated hydrocarbon (insecticide)
A tipping point.
The principle of sustainability.
The irreversible nature of human change.
Constants
Repeated trials
A control
The phosphate added to one side of the lake
The depth of the lakes
The nitrates and carbon added to both lakes
The depth of the lakes
If one side of the lake receives more sunlight, then that side will have more phytoplankton growth.
The amount of phytoplankton growth will vary with the depth of the lake.
If more phosphate is added to one side of the lake, then there will be more phytoplankton growth on that side.
The greenhouse effect
Acid rain deposition
the clearing of land for a new road to be built through the rain forest.
the clearing of rain forests for agricultural lands that adds carbon dioxide to the atmosphere.
the loss of trees causing less carbon dioxide to be absorbed from the atmosphere.
Transmitting tropical disease to humans who visit locations between the Tropic of Cancer and the Tropic of Capricorn
Fertilizing the soil with nutrients from their waste material and when they decompose
Pollinating almond and fruit trees in California so the farmers themselves do not have to pollinate the flowers
Question 35
35.

A greenhouse gas produced by raising cattle.

Question 36
36.

Can be stored in marine sediments for long periods of time.

Question 37
37.

A greenhouse gas emitted into the atmosphere through transpiration or evaporation.

Question 38
38.

A limiting factor for most plant growth in lakes and terrestrial systems.

Desert cacti can thrive in areas with low levels of rainfall.
Blue crabs in an estuary can tolerate wide swings of salinity and temperature.
Royal ferns require moist areas and are only found in wetlands.
0.6 m2
1.1 m2
207.4 m2
401.5 m2
2073.9 m2
heat energy.
carbon monoxide gas.
Large amounts of nitric oxide (NO) are released into the atmosphere by smokestacks which can cause acid rain.
Nitrous oxide (N2O) is added to the atmosphere through the action of bacteria on livestock waste.
Large amounts of nitrates are added to the Chesa­peake Bay causing a eutrophic dead zone.
is a limiting factor for many plants.
can be deposited as marine sediment and not be released for millions of years.
is returned to the soil as fertilizer and can cause algae blooms.
Temperature and soil type
Soil type and cloud cover
A thunderstorm forms and drops 1.5 cm of rain.
Increased greenhouse gases in the atmosphere cause atmospheric warming.
Desertification of an area causes the area to see increased annual temperatures.
Question 46
46.

A current responsible for moving heat away from the equator.

Question 47
47.

The reversal of this current is associated with ENSO events.

Question 48
48.

Cape Cod juts out from the Eastern coast of North America. This current keeps the waters off Cape Cod very cool.

Question 49
49.

This current causes offshore upwellings of nutrient rich water that is responsible for plankton rich waters sustaining a large anchovy fishery.

Temperature is highest on mountaintops because they are closer to the sun and therefore receive more solar radiation.
The land becomes arid, resulting in the growth of different types of vegetation.
The change in mountainous climate is very similar to the change in climate as latitude decreases.
Biomes have not been affected by human presence because the human population is not dense enough to impact them.
All desert biomes are hot and dry.
Mountainous areas all over the world contain the same biomes.
Question 52
52.

This biome is characterized by subfreezing tempera­tures much of the year, low precipitation rates, and the formation of permafrost.

Question 53
53.

This biome found in equatorial regions has large amounts of precipitation but has low levels of nutrients in the soil.

Question 54
54.

This biome often has snow, yet the average monthly temperature is always greater than the freezing point. Trees in this biome lose their leaves every fall, produc­ing colorful displays.

Storing much of their biomass as seeds and remain­ing inactive most of the year
Breaking down stored fats to produce needed water
Opening stomata (pores) only at night to absorb needed carbon dioxide
An offshore pelagic zone, because the large organisms that live there help lessen the size of the waves
A sand dune, because it protects the oceanic coastline from damaging waves and wind
A salt marsh, because this is where saltwater and freshwater mix
II only
III only
I and II only
II and III only
Availability of light
Dissolved oxygen
Nutrient availability
Lake edges, because people often populate lake shorelines
Ocean shorelines, because the waves sweep organisms out to the open sea
Open ocean, because of the lack of many nutrients such as nitrates and iron
gravitational pull of the sun, because although it is very far away, it is massive in size.
uneven heating, because the heated water becomes less dense and is therefore more easily moved by the wind.
tilt of the earth on its axis, because ocean water will rush to the tilted side.
Pelagic zone ➔ estuary ➔ benthos ➔ photic zone
Benthos ➔ estuary ➔ profundal ➔ limnetic
Littoral zone➔ estuary➔ abyssal➔ limnetic
In the abyssal zone, which is very cold and with little dissolved oxygen, where many organisms live and feed upon dead and decaying organic particles
In the intertidal zone, where organisms must adapt to alternating high and low tides, as well as changing salinity levels
In coral reefs, because the coral uses all the light and nutrients to survive
Upwelling zones, because the upward movement makes water sports more competitive
Primary dune, because the slopes are enjoyed by skateboarders and they will not be hurt if they fall
Profundal zone, because it is deep and dark and pleasant for water skiers
Question 64
64.

Causes large areas of little to no oxygen in the Chesa­peake Bay and the Gulf of Mexico.

Question 65
65.

Causes large areas of beach loss or erosion or migration of beaches to new locations.

Question 66
66.

Caused by boats improperly anchoring.

Question 67
67.

Causes ocean warming and pH reduction, leading to coral bleaching.

Question 68
68.

Which part of the diagram depicts the resource use that would be in competition if a new species moves into an area and is in direct competition with another species?

Question 69
69.

The niche of the black bear which is an omnivore would be best represented as which letter?

Question 70
70.

The area under the curve depicted by letter B would be best described as

The change in the genetic makeup of successive generations of a species.
The grand plan of nature determines how organ­isms will evolve.
The organisms have desires for particular traits and so evolve them.
shaping the community to enhance it for other species.
controlling bacterial levels preventing the infection of other species.
eliminating all potential predators in the ecosystem.
Question 75
75.

As pollution levels in streams rise, many aquatic insects such as the mayfly quickly disappear. For this reason, many aquatic insects are studied intensively.

Question 76
76.

The beaver transforms its environment from streams to ponds and swamps, allowing a diverse collection of organisms to thrive that would not normally be able to survive.

Question 77
77.

Kelp (a brown algae) forms large beds, creating a habi­tat for many fishes and shellfishes.

Question 78
78.

The Chitymomma is an Agave that regionally helps or is used to define the Chihuahuan Desert of Northern Mexico and the Southwestern United States.

eukaryotes, mostly single-celled organisms with a nucleus, such as diatoms and protozoans, some of which cause diseases in humans.
usually multicelled; many are decomposers such as molds and mildews.
multicellular organisms such as mosses and ferns, which can be annuals or perennials.
II only
I and II only
II and III only
I, II, and III
reindeer that live north of the Arctic Circle.
humans that live in the Andes Mountains of South
America.
the gray wolf, which is locally extinct in the American
northeast.
Question 82
82.

Three species of grasses compete for sunlight in a grassy lawn.

Question 83
83.

A species of ant living in the thorns of the Acacia tree protects the tree from herbivores and feed off of lipid rich food-bodies on the tree.

Question 84
84.

Barnacles adhering to the skin of a whale. The barnacle benefits by being transported to new sources of food and the presence of barnacles does not appear to hamper or enhance the survival of the animals carrying them.

Question 85
85.

Chipmunks, squirrels, and other animals eat the pine nuts that pine trees produce.

Question 86
86.

A species of pseudoscorpion disperses by concealing itself under the wings of large beetles. The pseudoscorpions gain the advantage of being dispersed over wide
areas while being protected from predators. The beetle is unaffected by the presence of the hitchhikers.

The otter is showing a slow rate of population
increase.
The otter is growing at an exponential rate.
The otter is an endangered species.
-13.0
-0.13
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A bromeliad attaching itself to tropical trees to gather sunlight, water, and nutrients
Populations of the common garter snake have evolved a resistance to the toxins of their prey, newts of the genus Taricha; as the newts continue to evolve more potent toxins, the garter snakes evolve an increased amount of resistance to the poison over time as well
Several species of birds, all feeding on the same species of tree, evolve traits that enable them to eat at different levels of the tree or by eating different kinds of prey species
Suburbanization eliminating many forests and creating many edge habitats
Trapping of deer and moving them out of areas where they are not wanted
Many people planting their properties with edible flowers and shrubs
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A boulder field left from the retreat of a glacier
A newly created small pond
Red-tailed hawks feeding on rabbits
An avalanche clearing a hillside of all trees and shrubs
Pollution from a city killing invertebrates in a local stream
Each year, more and more of the sea ice melts in the Arctic. In less than 5 years there will most likely be a summer when there is no sea ice in the Arctic and this will have large ramifications for the ecology of the area that is dependent on sea ice.
The animal population rapidly changes, as when 26 reindeer were introduced to the island of St. Paul in 1910. By 1935, the population grew to more than 2,000 reindeer. Because of a lack of resources, the population dropped to eight reindeer by 1950.
Vegetation grows in response to a change in the environment, such as when a forest is cut down and species gradually return to the area, which may then become fully forested.
contributing to global warming.
polluting the air, water, and soil with manure.
natural control of pests.
The presence of large numbers of animals grazing too long in a grassy area, which hardens the soil they stand on
Growing only wheat, rice, and corn, which provide approximately half the calories people ingest
The creation of steep steps on a hillside, creating a series of flat areas on which to plant crops
Plants are not grown in soil, but istead their roots are in nutrient-filled water so they are protected from pests that would otherwise damage them.
Fishes are grown in underwater cages, protected from pest species.
Used mostly in tropical developing countries, crops such as bananas, coffee, and sugar cane are grown on large plantations and sold to developeed countries.
One or two crops are plante dtogether in rows between trees or shrubs, which provide shade as well as fruit or nuts.
Cutting down trees to allow sunlight and rain to reach the soil.
Frequent irrigation so water accumulated under the ground and, when the water table rises, supplies constant water to the plant roots.
Selective pesticides kill specific organisms, such as acequinocyl, which kills mites.
Pesticides save lives by killing the vectors for diseases such a malaria, bubonic plague, and typhus.
By killing the pests that damage agricultural crops, pesticides help keep the price of food down.
The use of essential oils taken from common specis such as clove, mint, rosemary, and thyme
DDT, because it remained harmful in the environment for years
The use of genetic engineering to create pest-resistant crops so successive generations of those crops will also be pest resistant
providing habitat for insects or other small invertebrates that feed on pests.
bringing in natural enemies to the insect pests, such as releasing ladybugs or praying mantis insects.
keeping organic matter and nutrients in the soil as much as possible.
Chapter 13 Practice Questions
  1. A drought in the 1930s transformed large parts of the Midwest into a "Dustbowl." This is an example of
  2. what would happen if the giant toad or feral pigs are not controlled.
  3. the results of many inches of rain falling within a few hours.
  4. the conversion of rangeland or cropland into a desertlike area.
  5. evaporation of water from the ground and release of moisture from leaves.
  6. water flowing over the surface when it is unable to infiltrate the ground because of saturation of the soil or a steep slope.
  7. One way to conserve water in agriculture is to
  8. plant crops that have adapted to arid climates by sending down deep tap roots and storing water in times of drought.
  9. use a technique similar to the ancient Egyptians', whereby they relied on a river to regularly overflow its banks.
  10. plant crops in places with less sunlight so there are fewer hours during the day for evaporation to occur.
  11. channel gray water from homes and industry to agricultural areas.
  12. use a watering technique that focuses the water in the immediate area of plant roots.
The next four questions refer to the following terms. Indicate choice with the appropriate letter.
  1. Aquifer
  2. Surface water
  3. Confined aquifer
  4. Water table
  5. Transpiration
  6. The freshwater from precipitation and snowmelt B
  7. Evaporation from the leaves of plants into the atmosphere E
  8. Underground caverns and porous layers of sand, gravel, or bedrock through which groundwater flows A
  9. Upper surface of the zone of saturation D
  10. A forested hillside will help eliminate
  11. the need for research such as that done at the Hubbard Brook Experimental Forest in New Hampshire.
  12. the use of pesticides, because the shade of the forest prevents insect pests from entering the area.
  13. droughts, because transpiration ensures that forest areas always have a high moisture level.
  14. flooding, because trees help reduce soil erosion and the flow of water downslope.
  15. unsustainable farming, because crops cannot be grown on forested slopes.
Use the graph to answer the next three questions.📷
  1. According to the graph, the flow of the Colorado River has
  2. dropped continually since 1910.
  3. gone up and down but continues to trend downward.
  4. stayed steady over the last 10 years.
  5. dropped steadily from 1935 until 1945.
  6. slowly increased in the last 10 years.
  7. What is a possible explanation about the flow of the Colorado from 1960 to 1980?
  8. There was no rainfall.
  9. Rainfall led to variation in flow.
  10. All rainfall was filling up Glen Canyon.
  11. There was a drought.
  12. Windstorms deposited large amounts of sediment in the reservoir.
  13. Which of the following best explains the general downward trend in Colorado River flow from 1910 until 1970?
  14. More water is being removed from the Colorado River before it reaches any of the dams.
  15. A series of heavy winter snowstorms have changed the water level of the Colorado River.
  16. Residents are using more water-saving devices in their homes.
  17. The dams on the Colorado River divert water to cities and for agriculture.
  18. The underground aquifer is being depleted as more farmers use its water for agricultural irrigation.
Blue crabs have a much shorter life span (2 years) than striped bass and naturally have more variability in their population numbers.
Global warming patterns have caused an increase in the Chesapeake Bay temperatures causing increased crab spawning rates.
Blue crabs are more highly influenced by rainfall patterns than striped bass.
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the niche of a specialist like the panda bear that eats only bamboo.
the competition between a producer and a consumer.
how far the niche of two species of animals are separated from each other.
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