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Question 1

Which of the following describes the relationship between a predator and prey?

Answer 1

One species is harmed while the other benefits.

Question 2

In which of the following scenarios would an ecosystem’ carrying capacity for wildebeest increase?

Answer 2

A neighboring population of herbivores migrates away

Question 3

What is the primary limiting factor for population growth in a dry and hot (arid) region of the Serengeti?

Answer 3

Water availability

Question 4

Graph A: Population of wildebeest and predators over a decade in the Serengeti; What does the graph suggest about the relationship between wildebeest and their predators?

Answer 4

Predators and wildebeest populations follow a similar trend

Question 5

…

Answer 5

2008

Question 6

Scenario: During the dry season in the Serengeti, there is a significant reduction in water sources. Wildebeest populations tend to migrate in search of water; How might this migration affect predator populations?

Answer 6

Predator populations will decrease as prey becomes scarce.

Question 7

Scenario: During the dry season in the Serengeti, there is a significant reduction in water sources. Wildebeest populations tend to migrate in search of water; What type of growth is illustrated by the wildebeest population during times of abundant resources?

Answer 7

Exponential Growth

Question 8

Graph C: Logistic Growth Curve; At which year on the graph does carrying capacity come into play?

Answer 8

9-10

Question 9

What is the primary cause of the plateau observed in the population at year 9-10?

Answer 9

Resource limitation

Question 10

A new predator is introduced into the Serengeti, disrupting the natural balance. How might the introduction of the new predator affect the biodiversity of the ecosystem?

Answer 10

Biodiversity will decrease

Question 11

Graph D: Carbon Dioxide Levels in 2 Regions of the Serengeti; How do elevated carbon dioxide levels in Region A likely affect the biogeochemical cycle?

Answer 11

Decrease in photosynthesis

Question 12

Scenario: Overgrazng by wildebeest has led to habitat degradation; Which of the following will most likely happen as a result of this overgrazing?

Answer 12

Decrease in plant populations

Question 13

Scenario: Overgrazng by wildebeest has led to habitat degradation; What might be a long-term consequence of continuous habitat degradation?

Answer 13

Loss of biodiversity

Question 14

Graph E: Logistic vs. Exponential Growth Curves in Different Biomes; Which graph represents exponential growth and why?

Answer 14

Graph 1 (red), because it illustrates an unlimited growth phase.

Question 15

Graph E: Logistic vs. Exponential Growth in Different Biomes; Why is logistic growth more common in ecosystems than exponential growth?

Answer 15

Resources are always limited

Question 16

In which year did population density peak?

Answer 16

2012

Question 17

What might explain the drop in population density in 2015?

Answer 17

Reduction in food sources

Question 18

Climate change has altered the Serengeti’s seasonal rainfall patters; How will this impact the water cycle and the populations of the Serengeti?

Answer 18

Droughts will decrease prey populations

Question 19

Climate change has altered the Serengeti’s seasonal rainfall patterns; What role do abiotic factors like rainfall play in limiting population growth?

Answer 19

They can limit food and water, reducing population growth.

Question 20

Graph F: Nitrogen Levels in Soil Over Time; What process is responsible for the increase in nitrogen levels seen in the graph?

Answer 20

Nitrogen fixation

Question 21

Graph F: Nitrogen Levels in Soil Over Time; How does nitrogen availability affect the Serengeti’s plant and herbivore populations?

Answer 21

Nitrogen limits plant growth, reducing food for herbivores

Question 22

What term describes all the living organisms in a particular area?

Answer 22

Community

Question 23

Which term refers to the non living components of an ecosystem, like water, rocks, and temperature?

Answer 23

Abiotic

Question 24

What is the maximum population size that an environment can support called?

Answer 24

Carrying Capacity

Question 25

What is the maximum population size that an environment can support called?

Answer 25

Carrying Capacity

Question 26

What term describes a group of the same species living in a specific area?

Answer 26

Population

Question 27

What is the term for the variety of life within an ecosystem?

Answer 27

Biodiversity

Question 28

Which of the following represents an example of a biotic factor?

Answer 28

Plants

Question 29

what term is used to describe the relationship where one organism hunts and eats another organism?

Answer 29

Predation