Intro to Ecology Assessment

Last updated almost 2 years ago

29 questions

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Library

Intro to Ecology Assessment

Last updated almost 2 years ago

29 questions

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2

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1

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2

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Bees pollinating flowers is an example of __________.
Crocodiles competing with lions for food is an example of a __________ relationship.

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During a drought, hardly any plant grow so there is little food for the primary consumers. As a result, many of them starve leaving little food for the secondary consumers. This is an example of __________ regulation.
As a result of overhunting, the sea otter population collapses, causing a increase in sea urchin population (their food). Since urchins feed on kelp, the kelp forest disappear as a result. This is an example of __________ regulation.

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Exponential growth occurs when there is __________ and __________.

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Logistic growth occurs when there is some __________ and is characterized by a growth curve that __________ at the __________.

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Which part of the Serengeti is the wildebeests' breeding ground?

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Which part of the Serengeti do wildebeests go to during the dry season?

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Label the important events in the history of the Serengeti wildebeest population.

Other Answer Choices:

Massive die-off due to poaching

Rinderpest first brought in

wildebeests are first brought in

Large drought ever

Lions first introduced

Vaccination program

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Other Answer Choices:

Poaching

Dry season food availability

Lion predation

Disease outbreaks

Civil war among the Masai

Invasive grass species

Amount of sunlight

Widespread storms

Competition with zebras

Wet season food availability

Habitat loss

Categorize each as biotic or abiotic

Which of the following is the best definition of conservation?

Study of the relationships among organisms and their environments.

Study of elephants

Studying ecosystem dynamics

The act of protecting and restoring the environment.

"all of the plants and animals in Serengeti National Park" is an example of a(n)

community

landscape

population

ecosystem

Categorize each of the following

Bacteria that break down waste
Grass
Wolf (eats deer)
Deer

Producer
Primary consumer
Secondary consumer
Decomposers

Who produces all of the energy for the entire ecosystem using energy from the sun?

In a given ecosystem, how does the biomass of the primary consumers compare to the biomass of the producers?

The biomass of the primary consumers is about 100 times the biomass of the producers.

The biomass of the primary consumers is about 10 times the biomass of the producers.

The biomass of the primary consumers is about the same as the biomass of the producers.

The biomass of the primary consumers is about 1/10th the biomass of the producers.

The biomass of the primary consumers is about 1/100th the biomass of the producers.

____________________is the first species to inhabit barren area.

climax species

endangered species

threatened species

pioneer species

What is the most common criterion used to determine if two individuals belong to the same species?

If they live in the same area, then they are the same species.

If they look alike, then they are the same species.

If they can have babies, then they are the same species.

It's just obvious.

Why is having high biodiversity beneficial for a community? (2 answers)

It increases the energy available

It decreases predation

It makes the community more resistant to disturbance

It contributes to community stability

What are first species to come back in a community after a disturbance?

maverick species

keystone species

interspecific species

pioneer species

When referring to competition, what does the "(-/-)" mean?

Both species are harmed by the other's presence

Both species go extinct

The species do not like each other

The predator and the prey are harmed (-)

Bees pollinating flowers is an example of __________.
Crocodiles competing with lions for food is an example of a __________ relationship.

During a drought, hardly any plant grow so there is little food for the primary consumers. As a result, many of them starve leaving little food for the secondary consumers. This is an example of __________ regulation.
As a result of overhunting, the sea otter population collapses, causing a increase in sea urchin population (their food). Since urchins feed on kelp, the kelp forest disappear as a result. This is an example of __________ regulation.

What is population ecology?

The study of a single species in an area.

The study of all of the species in an area.

The study of the interactions between species and their environments.

The study of the entire biosphere

Which are the three measurable population features?

Demographics

Devolution

Density

Dispersion

Which of the measurable population features has units of "population per unit area"?

Density

Demographics

Devolution

Dispersion

Exponential growth occurs when there is __________ and __________.

Logistic growth occurs when there is some __________ and is characterized by a growth curve that __________ at the __________.

Categorize the two limiting factors below.

Habitat area
Predation

Top-down regulation
Bottom-up regulation

Categorize the limiting factors.

food availability
nesting sites
volcanic eruption
toxic chemical in the water

Density dependent limiting factor
Density independent limiting factor

Which part of the Serengeti is the wildebeests' breeding ground?

Which part of the Serengeti do wildebeests go to during the dry season?

Label the important events in the history of the Serengeti wildebeest population.

Other Answer Choices:

Massive die-off due to poaching

Rinderpest first brought in

wildebeests are first brought in

Large drought ever

Lions first introduced

Vaccination program

What was the main limiting factor that was regulating the wildebeest population in the two regions shown?

Other Answer Choices:

Poaching

Dry season food availability

Lion predation

Disease outbreaks

Civil war among the Masai

Invasive grass species

Amount of sunlight

Widespread storms

Competition with zebras

Wet season food availability

Habitat loss

Categorize each as biotic or abiotic

Biotic Factors

Abiotic Factors

Disease

Food availability

Mountain terrain

Climate

Which of the following is the best definition of conservation?

Study of the relationships among organisms and their environments.

Study of elephants

Studying ecosystem dynamics

The act of protecting and restoring the environment.

"all of the plants and animals in Serengeti National Park" is an example of a(n)

community

landscape

population

ecosystem

Categorize each of the following

Bacteria that break down waste

Grass

Wolf (eats deer)

Deer

Producer

Primary consumer

Secondary consumer

Decomposers

The graph below shows changes in a population of wild sheep that were introduced to the island of Tasmania in the early 1800's.

In 1810, there 0 sheep in Tasmania. In 1850, there were 2,200,000 sheep. Calculate the average growth rate over that period.

How would yo characterize the growth during this period?

random

exponential

logistic

negative

The population fell from 2,200,000 sheep down to 1,500,000 sheep between 1850 and 1860. Calculate the growth rate during that period (sheep/year)

What does the dotted line on the graph stand for?

population of predators

amount of rain

average growth rate

carrying capacity

The graph indicates that the sheep population most likely is

headed for extinction because of the population explosion about 1930.

relatively stable after 1850 under the effects of density-dependent regulating factors.

relatively stable after 1850 because of a natural disaster.

moving up and down because of breeding seasons.

Who produces all of the energy for the entire ecosystem using energy from the sun?

tertiary consumers

secondary consumers

primary consumers

producers

decomposers

In a given ecosystem, how does the biomass of the primary consumers compare to the biomass of the producers?

The biomass of the primary consumers is about 100 times the biomass of the producers.

The biomass of the primary consumers is about 10 times the biomass of the producers.

The biomass of the primary consumers is about the same as the biomass of the producers.

The biomass of the primary consumers is about 1/10th the biomass of the producers.

The biomass of the primary consumers is about 1/100th the biomass of the producers.

____________________is the first species to inhabit barren area.

climax species

endangered species

threatened species

pioneer species

What is the most common criterion used to determine if two individuals belong to the same species?

If they live in the same area, then they are the same species.

If they look alike, then they are the same species.

If they can have babies, then they are the same species.

It's just obvious.

Why is having high biodiversity beneficial for a community? (2 answers)

It increases the energy available

It decreases predation

It makes the community more resistant to disturbance

It contributes to community stability

What are first species to come back in a community after a disturbance?

maverick species

keystone species

interspecific species

pioneer species

When referring to competition, what does the "(-/-)" mean?

Both species are harmed by the other's presence

Both species go extinct

The species do not like each other

The predator and the prey are harmed (-)

What is population ecology?

The study of a single species in an area.

The study of all of the species in an area.

The study of the interactions between species and their environments.

The study of the entire biosphere

Which are the three measurable population features? 

Demographics

Devolution

Density

Dispersion

Which of the measurable population features has units of "population per unit area"? 

Density

Demographics

Devolution

Dispersion

Categorize the two limiting factors below.

Habitat area

Predation

Top-down regulation

Bottom-up regulation

Categorize the limiting factors.

food availability

nesting sites

volcanic eruption

toxic chemical in the water

Density dependent limiting factor

Density independent limiting factor

What was the main limiting factor that was regulating the wildebeest population in the two regions shown?

How would yo characterize the growth during this period?

random

exponential

logistic

negative

What does the dotted line on the graph stand for?

population of predators

amount of rain

average growth rate

carrying capacity

The graph indicates that the sheep population most likely is

headed for extinction because of the population explosion about 1930.

relatively stable after 1850 under the effects of density-dependent regulating factors.

relatively stable after 1850 because of a natural disaster.

moving up and down because of breeding seasons.