Practice Test

Question 1

How does mining impact the environment?

Revolt · Accepted Answer

C: It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.

Question 2

A relationship in which one organism benefits while the other is neither harmed nor helped is called

Revolt · Accepted Answer

D: commensalism.

Question 3

How would a harsh winter most likely affect the rabbit population size?

Revolt · Accepted Answer

B: population decreases

Question 4

What term includes all the biotic and abiotic factors in an area?

Revolt · Accepted Answer

D: ecosystem

Question 5

Natural resources are classified as renewable and nonrenewable. What is the difference between the two?

Revolt · Accepted Answer

B: whether or not the resource can be replaced

Question 6

A population of zebras experienced ten births, six deaths to predation, three deaths to disease, three individuals joining the population, and zero individuals leaving. What is happening to the population growth?

Revolt · Accepted Answer

C: It is increasing.

Question 7

How do limiting factors most affect population size?

Revolt · Accepted Answer

C: restrict population growth

Question 8

Barnacles and whales have a commensalistic relationship in which barnacles benefit. What would most likely happen to the whale population if the barnacle population decreased?

Revolt · Accepted Answer

C: stay the same

Question 9

Pandas eat bamboo for energy. What are pandas classified as?

Revolt · Accepted Answer

C: consumers; D: autotrophs

Question 10

The tundra ecosystem of Alaska is known as a “cold desert.” It receives very little precipitation, about four inches annually. However, it is rich in wetlands due to permafrost, which traps moisture close to the surface. The temperatures vary widely, also producing persistent winds. Although treeless, the Arctic tundra is an abundant ecosystem. Many organisms find their niche here including many migratory bird species and mammals such as caribou, foxes, bears, and small rodents. Which factor of the tundra ecosystem is biotic?

Revolt · Accepted Answer

D: dead bird

Practice Test Answers

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