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Intro to Ecology Assessment

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Last updated almost 2 years ago
29 questions
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Question 1
1.

Categorize each as biotic or abiotic

Biotic Factors
Abiotic Factors
Disease
Food availability
Mountain terrain
Climate
Question 2
2.

Which of the following is the best definition of conservation?

Question 3
3.

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

Question 4
4.

Categorize each of the following

  • Bacteria that break down waste
  • Deer
  • Grass
  • Wolf (eats 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.
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Question 5
5.

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

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Question 10
10.

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

Question 11
11.

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

Question 12
12.

____________________is the first species to inhabit barren area.

Question 13
13.

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

Question 14
14.

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

Question 15
15.

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

Question 16
16.

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

Question 17
17.
Bees pollinating flowers is an example of __________.
Crocodiles competing with lions for food is an example of a __________ relationship.
Question 18
18.
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.
Question 19
19.

What is population ecology?

Question 20
20.

Which are the three measurable population features?

Question 21
21.

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

Question 22
22.
Exponential growth occurs when there is __________ and __________.
Question 23
23.
Logistic growth occurs when there is some __________ and is characterized by a growth curve that __________ at the __________.
Question 24
24.

Categorize the two limiting factors below.

  • Predation
  • Habitat area
  • Top-down regulation
  • Bottom-up regulation
Question 25
25.

Categorize the limiting factors.

  • toxic chemical in the water
  • food availability
  • nesting sites
  • volcanic eruption
  • Density dependent limiting factor
  • Density independent limiting factor
Question 26
26.

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

Question 27
27.

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

Question 28
28.
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
Question 29
29.
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
Question 6
6.

How would yo characterize the growth during this period?

Question 7
7.

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)

Question 8
8.

What does the dotted line on the graph stand for?

Question 9
9.

The graph indicates that the sheep population most likely is