Populations and the Environment

Question 1

Identify whether each of the following is a biotic or abiotic factor.Bear:

Revolt · Accepted Answer

biotic

Question 2

Rock:

Revolt · Accepted Answer

abiotic

Question 3

Dead log:

Revolt · Accepted Answer

biotic

Question 4

Grass:

Revolt · Accepted Answer

biotic

Question 5

Sunlight:

Revolt · Accepted Answer

abiotic

Question 6

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

Revolt · Accepted Answer

negative

Question 7

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

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

Question 8

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

Revolt · Accepted Answer

both

Populations and the Environment Answers

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