Unit 3 Test Vocabulary

An animal without a backbone, such as an insect

• Echinoderm

• Coral

• Medusa

• Invertebrate

A small sea animal that catches food with stinging tentacles; many live in large colonies on coral reefs

• Echinoderm

• Coral

• Medusa

• Invertebrate

A sea animal with an internal skeleton and a body divided into five equal parts, such as a starfish.

• Echinoderm

• Coral

• Medusa

• Invertebrate

The umbrella-shaped, swimming stage in the life cycle of jellyfish and other cnidarians.

• Echinoderm

• Coral

• Medusa

• Invertebrate

A small sea animal with a hollow cylindrical body and a ring of tentacles around its mouth; one of the two stages in the life cycle of cnidarians.

• Bivalve

• Mollusk

• Polyp

• Crustacean

A soft bodied invertebrate that is often protected by a hard shell

• Bivalve

• Mollusk

• Polyp

• Crustacean

A mollusk with a shell made of two parts of valves, such as an oyster or mussel.

• Bivalve

• Mollusk

• Polyp

• Crustacean

An invertebrate with jointed legs and two pairs of antennae, such as a crab

• Bivalve

• Mollusk

• Polyp

• Crustacean

A young animal that develops into an adult by a complete change in body shape

• Antennae

• Exoskeleton

• Larva

• Life Cycle

A hard, outer skeleton that surrounds an animal's body

• Antennae

• Exoskeleton

• Larva

• Life Cycle

Tags

NGSS.MS-LS4-2