Science Chapter 3 Review

A _______ is a hard skeleton in the outside of some animals that gives structure and protection.

• internal skeleton

• exoskeleton

• vascular tissue

• system

Which type of structures help animals get energy?

• eyes

• mouth

• stomach

• arm

How do animals protect their delicate eggs?

In our book it talked about 4 parts of the flower reproduction. What are those 4 parts?

• Pistil, stamen, ovary, pollen tube

• stomach, kidney, heart, lungs

• bones, exoskeleton

• leaves, stems, pedals

What is one way an animal can get oxygen?

• lungs

• spiracles

• gills

• All the above

True or False

Adaptation is a characteristic that allows an organism to survive better in its environment?

• True

• False

What is natural selection?

When does succession occur?

• When an environment stays the same

• Never

• When an environment changes

• When an environment does nothing

True or false

A long neck is a physical adaptation that helps a giraffe survive in its environment?

• True

• False

How is quick speed helpful to animals?