Chapter 3 Science Review

Scientists classify insects, spiders, and crabs as...

• vertebrates

• reptiles

• arthropods

• mollusks

Something that causes a reaction in a living thing is called a(n)...

• stimulas

• behavior

• instinct

• inherited characteristic

Giraffes with longer necks have an advantage in

• competition

• adaptation

• nutrition

• protection

Which adaptation might help protect a plant from being eaten

• a flower that looks like a bee

• a waxy coating

• a substance that attracts insects

• a thorny stem

All living things are called _________.

• prey

• organisms

• partnerships

Some animals _______ from one ecosystem to another to find food and water.

• migrate

• adapt

• hibernate

A behavior that an animal begins life with.

• Trait

• Instinct

• Environment

• Adaptation

A characteristic or property of an organism.

• Adaptation

• Instinct

• Trait

• Extinction

Birds have different beaks to help them survive in their habitat, which is a type of ___________ adaptation.

• behavioral

• physical

• learned

• migration

Squirrels gather and store acorns for the winter, which is a ___________ adaptation.

• behavioral

• structural

• physical

• environmental