What are animals with backbones called?

• spined creatures

• vertebrates

• invertebrates

• backboned critters

Which of these animals are vertebrates? (Select all that apply.)

• penguin

• fox

• alligator

• snake

• crab

Some mammals are born and crawl into pouches. Other mammals lay eggs.

What is another way mammals are born?

Tags

NGSS.MS-LS3-2

List two characteristics that help birds fly.

Which kind of teeth do mammals use to grind their food?

• incisors

• canines

• molars

TRUE or FALSE: All mammals have hair or fur during some part of their lives.

• True

• False

TRUE OR FALSE: If a bird flies from a warm area to a cold area, its internal body temperature will also get colder.

• True

• False

Which is the only group of vertebrates that have feathers?

• amphibians

• reptiles

• mammals

• fish

• birds

Read the clues. I have scales. My skin is dry. I breathe with lungs. I lay tough, leathery eggs. What vertebrate am I?

• bird

• mammal

• reptile

• amphibian

• fish

What group of vertebrates breathes through smooth, moist skin?

• fish

• birds

• amphibians

• reptiles

• mammals