5th Grade Science Chapter 3

Holes on the surface of a plant leaf through which gasses pass.

• exoskeleton

• spiracles

• stomata

A hard skeleton on the outside of the body.

• exoskeleton

• spiracles

• stomata

Air holes on the skin of an insect's body.

• exoskeleton

• spiracles

• stomata

True or False: An exoskeleton's only purpose is to support the body.

• True

• False

True or False: Plants can have a circulatory system.

• True

• False

A characteristic that allows an organism to survive better in its environment.

• Adaptation

• mutation

• succession

A random change in the gene.

• adaptation

• mutation

• succession

The predictable order of changes in communities after a change occurs.

• adaptation

• mutation

• succession

True or false: An adaptation might help a plant survive in an environment with cold winters.

• True

• False

True or false: A random genetic change that occurs to a plant can help or hurt it's survivability.

• True

• False