Practice Test

Question 1

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

A: stay the same

Question 2

Which statement best describes the purpose of Earth's spheres?

Revolt · Accepted Answer

D: They work together as open systems to move matter to living and nonliving parts of Earth.

Question 3

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

Revolt · Accepted Answer

A: whether or not the resource can be replaced

Question 4

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

Revolt · Accepted Answer

A: consumers

Question 5

How does mining impact the environment?

Revolt · Accepted Answer

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

Question 6

Which statement best compares the carbon cycle and the nitrogen cycle?

Revolt · Accepted Answer

B: Both involve the work of decomposers.

Question 7

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

Revolt · Accepted Answer

C: commensalism.

Question 8

Which of these could result in secondary succession?

Revolt · Accepted Answer

C: an introduced species that destroys all the native plants in an area

Question 9

How does conservation affect biodiversity?

Revolt · Accepted Answer

D: It helps to preserve biodiversity.

Question 10

What is the primary source of energy in a food chain?

Revolt · Accepted Answer

B: sun

Practice Test Answers

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