Invertebrate Phyla

What are animals that lack a backbone?

Invertebrates have no __________ structures to help support their bodies.

• External

• Internal

What percent of all animal species are invertebrates?

• 92%

• 85%

• 95%

• 83%

What is the simplest of the invertebrates?

• Insects

• Roundworms

• Sea Star

• Sponges

What phylum does sponges belong to?

• Cnidaria

• Platyhelminthes

• Nematoda

• Porifera

What kind of symmetry does sponges have?

Which phylum includes jellyfish, sea anemones, hydras, and corals?

• Cnidaria

• Echinodermata

• Arthropoda

• Mollusca

Tags

NGSS.MS-LS4-2

What kind of symmetry does Cnidarians have>

What are specialized cells that are used for defense and capturing food?

• Exoskeletons

• Appendage

• Echinoderm

• Nematocysts

What phylum does flatworms belong to?

• Porifera

• Platyhelminthes

• Nematoda

• Mollusca