Invertebrates

Invertebrates make up _______ % of all animal species.

• 5

• 10

• 55

• 95

No symmetry; irregular in shape

• asymmetry

• radial symmetry

• bilateral symmetry

Symmetry around a central point

• asymmetry

• radial symmetry

• bilateral symmetry

Symmetry with equal left and right sides

• asymmetry

• radial symmetry

• bilateral symmetry

Sponges belong to phylum ______

• Spongia

• Cnidaria

• Porifera

• Nematoda

Capable of regeneration

• flatworms

• tapeworms

• bivalves

• sponges

Mouth and tentacles face downward; free-swimming

• polyp

• medusa

• sponge

Mouth and tentacles face upward; usually attached

• polyp

• medusa

• sponge

Simplest worms

• roundworms

• annelid worms

• flatworms

Planarians and tapeworms

• flatworms

• roundworms

• annelid worms

Tags

NGSS.MS-LS4-2