Unit 3 Review-Bio I

What is meant by adaptation?

• An animal can swim in warm water and cold water.

• It is any characteristic that helps a plant or animal survive in its environment.

• It is a habitat that animals can change.

• They develop over long periods of time.

The action of an organism changing to better suit its new or old environment.

• Natural Selection

• Physical Trait

• Camouflage

• Adaptation

The armadillo's hard outer shell is an example of which adaptation?

• digging
• getting food
• protection
• shelter

Which foot has adaptations for surviving in a water environment?

• A
• B
• C
• D

When the Virginia opossum feels threatened it will exhibit behaviors like running or growling. Sometimes it will roll over, become stiff, drool, and change its breathing to a slow and shallow pace. Possums can maintain this behavior for up to four hours. Some predators will think the opossum is dead and go away. The adaptation the opossum is using is an example of ___.

• an environmental adaptation
• a behavioral adaptation
• a physiological adaptation
• a structural adaptation

• A

• B

• C

• D

The breeding of organisms for desired characteristics.

• natural selection

• variations

• selective breeding

• ancestor

Characteristics of an organism that enable it to survive.

• variation

• adaptation

• artificial selection

• natural selection

Explains how populations change as their environment changes.

• ancestor

• selective breeding

• artificial selection

• natural selection

Slight differences in the appearance of individual members of a species.

• variations

• adaptations

• ancestors

• natural selection