Succession and Extinction

Question 1

Ecosystems with greater biodiversity have an increased stability.

Revolt · Accepted Answer

A: T

Question 2

A variety of different mechanisms in nature help create diversity in organism populations. The tundra found in the northernmost parts of the planet is the world’s youngest biome. The tundra is home to a variety of plants and animals. Organisms that can be found in the tundra include shrubs, mosses, caribou, polar bears, and wolves. Which mechanism do the different organism populations found across the tundra exemplify?

Question 3

Which of the following is not a possible reason for migration?a.climate changesb.diminished food supplyc.reproduction patternsd.increased biodiversity

Revolt · Accepted Answer

D: D

Question 4

Consider the following food chain: Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. In the short term, what will happen to the other members of the food chain if the mice were removed? a. the number of plants will decrease, the number of grasshoppers will increase, the number of snakes will decrease b. the number of plants will decrease, the number of grasshoppers will decrease, the number of snakes will decrease c. the number of plants will increase, the number of grasshoppers will increase, the number of snakes will decrease d. the number of plants will increase, the number of grasshoppers will increase, the number of snakes will increase Please select the best answer from the choices provided

Question 5

Consider the following food chain: Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. What is likely to happen if a new organism that feeds off mice is introduced? a. The mice population will increase in response to the arrival of the new organism. b. The mice population, grasshopper population, and plant population will all increase. c. The new organism will compete with the snake population for resources. d. The populations of the existing organisms will remain unaffected. Please select the best answer from the choices provided

Revolt · Accepted Answer

C: C

Question 6

Consider the following food chain: Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. What would happen to the other members of the food chain if the plant population was wiped out? a. The populations of grasshoppers, mice, and snakes would increase. b. The populations of grasshoppers and mice would increase, while the population of snakes would decrease. c. The populations of grasshoppers would decrease, while the population of mice and snakes would increase. d. The populations of grasshoppers, mice, and snakes would decrease. Please select the best answer from the choices provided

Revolt · Accepted Answer

D: D

Question 7

How can an increase in biodiversity lead to an increase in ecosystem stability?a.A more biodiverse ecosystem is not subject to change.b.A more biodiverse ecosystem has a higher chance of adapting to species changes.c.A more biodiverse ecosystem has fewer species types to balance.d.A more biodiverse ecosystem is subject to fewer natural disasters.

Question 8

Migration causes a temporary appearance of new organisms in an ecosystem, but not a permanent one. Please select the best answer from the choices provided

Revolt · Accepted Answer

B: F

Question 9

What is a possible cause for a decrease in ecosystem productivity?a.an increase in the biodiversity of the ecosystemb.a decrease of the biodiversity of an ecosystemc.the biodiversity of an ecosystem experiencing no changed.an ecosystem becoming more stable

Question 10

An increase in the biodiversity of an ecosystem leads to an increase in its productivity.

Revolt · Accepted Answer

A: T

Succession and Extinction Answers

More from this Course

TRY EDGENUITY HACKS