Question

Which of the following is a density-independent limiting factor?

A. a struggle for food, water, space, or sunlight

B. predator/prey relationships

C. the eruption of a volcano

D. parasitism and disease

Answer 1

d

Answer 2

Which is one way a freshwater wetland differs from a lake or pond?

Answer 3

A. Water flows in a lake or pond but never flows in a wetland.

B. Wetlands are nesting areas for birds, but lakes and ponds are not.

C. Water does not always cover a wetland as it does a lake or pond.

D. Wetlands are salty, but lakes and ponds are fresh.

Answer 4

c

Answer 5

Ideally, sustainable development should

A. put the protection of the environment ahead of human needs.

B. provide for human needs at the expense of the environment.

C. use more natural resources to make goods to meet human needs.

D. preserve ecosystems while providing for human needs.

Answer 6

d

Answer 7

Why is an organism’s niche like a person’s occupation?

Answer 8

An organism can “make a living” and survive in its niche.