Animal Classification

Most animals are __________.

• vertebrates

• herbivores

• invertebrates

In most mammals, the embryo develops __________.

• in a pouch

• inside the mother

• in water

An animal with matching right and left sides is said to show __________ symmetry.

• bilateral

• radial

• asymmetry

A vertebrate whose body temperature remains constant is said to be __________.

• endothermic

• ectothermic

• cold-blooded

The __________ group shows radial symmetry.

• cnidarian

• crustacean

• annelid

The only pouched mammal living in North America is the __________.

• koala

• opossum

• kangaroo

If an animal is a herbivore, it eats __________.

• animals

• plants and animals

• plants

Echinoderms use __________ to move and open clams.

• tube feet

• tentacles

• fins

The __________ can replace body parts by regeneration.

• mosquito

• crab

• starfish

The __________ stage is not a stage in incomplete metamorphosis.

• egg

• pupa

• adult