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Why do scientists classify animals?

• to organize information

• to show relationships

• to learn more about animals

• all of the above

How are animals that have backbones classified?

• as vertebrates

• as invertebrates

• as insects

• as jellyfish

Which animal is NOT cold-blooded?

• a fish

• a mammal

• a reptile

• an amphibian

There are more cold-blooded than warm-blooded animals in the five groups of animals we learned about.

• True

• False

Cold-blooded animals body temperature fluctuates, whereas warm-blooded animals body temperature stays constant.

• True

• False

In which animal group are humans classified?

• birds

• amphibians

• mammals

• reptiles

Fish are warm-blooded.

• True

• False

Fish are vertebrates.

• True

• False

Amphibians are cold-blooded.

• True

• False

Amphibians are invertebrates.

• True

• False