Which of the following is an example of a vertebrate animal?

• fly

• worm

• bird

• starfish

Most fish have _________________ to protect their bodies.

• hair

• scales

• feathers

• skin

Which of the following statements is true of reptiles?

• They are cold-blooded.

• They have gills.

• Their babies drink their mother's milk.

• They spend part of their lives in the water and part of their lives on land.

Invertebrates do NOT have a

• brain.

• heart.

• stomach.

• backbone.

Asia keeps seeing a small animal in her backyard. She observed the animal has a backbone, four legs, and its body is covered with dry scales. What is the classification for this animal?

• bird

• mammal

• reptile

• amphibian

Which group of vertebrates possesses gills, two sets of paired fins, and is generally adapted to living in water?

• fish

• reptiles

• mammals

• amphibians

Animals that are warm blooded, have body hair, and produce milk for their young are grouped into which of the following classes?

• amphibians

• mammal

• birds

• reptiles

What type of animal is a whale?

• amphibian

• fish

• mammal

• reptile

A snake has an internal skeleton, cannot breathe under water, and relies on outside sources of heat to keep its body temperature constant. A snake is which type of animal?

• bird

• fish

• reptile

• amphibian

Which vertebrate organism can breathe through its skin?

• clam

• frog

• spider

• pangolin