Termites have the unusual ability to eat wood.

Why are termites able to eat wood?

Responses


A. Microorganisms prepare the wood before termites eat it.


B. Microorganisms break down wood in the gut of a termite.

C. Termites are close relatives of trees and other plants.

D. Termites have strong mouthparts that can bite and chew wood.
Question 2.
Which statement best describes a healthy ecosystem?
Responses


A. Microorganisms are either absent or present in very small numbers.

B. New kinds of plants and animals arrive every year.

C. Plants and animals of many kinds are able to meet their needs.

D. One kind of animal grows in number every year.

The feathers of a parrot keep it dry and comfortable in the rainforest. However, the feathers do not protect a parrot from cold temperatures.

Could a parrot survive in a very cold environment, such as winter in a temperate forest?

Responses


A. No. The parrot could not live in the trees of a temperate forest.

B. Yes. The parrot would develop new adaptations to keep its body warm.


C. Yes. The parrot would grow thicker feathers.

D. No. The parrot could not meet its need for staying warm.
Question 3 Which statement best describes a healthy ecosystem?
Responses

A. Microorganisms are either absent or present in very small numbers.


B. New kinds of plants and animals arrive every year.

C. Plants and animals of many kinds are able to meet their needs.


D. One kind of animal grows in number every year.