Unit Test

Question 1

Which of the following statements are observations about the photo on the right? Check all that apply.

Revolt · Accepted Answer

A: Three boys are wearing green shirts.; B: Most of the children are running.; D: The grass is green.

Question 2

Identify the interactions as positive, negative, or both.A mudslide wipes out the side of a thriving hill:

Revolt · Accepted Answer

B: negative

Question 3

A recent forest fire has swept through the forest, killing many of the smaller organisms such as the hare, deer, and rodent populations that are prey for the larger organisms such as bobcats, wolves, and mountain lions. How would this affect the populations in the forest ecosystem? Check all that apply.

Revolt · Accepted Answer

B: The populations of bobcats, wolves, and mountain lions will decrease due to lack of food.; C: The populations of deer, hare, and rodents will increase due to the number of predators.

Question 4

A volcano erupts, covering the nearby land with lava:

Revolt · Accepted Answer

B: negative

Question 5

A forest is rapidly growing new plant life:

Revolt · Accepted Answer

A: positive

Question 6

Humans remove wolves from a national park to protect surrounding homes:

Revolt · Accepted Answer

C: both

Question 7

A dam is built in the middle of a river ecosystem to supply water to a nearby town:

Revolt · Accepted Answer

C: both

Unit Test Answers

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