Invertebrates - 7th

Most species of animals are these.

• invertebrates

• vertebrates

Name for an animal without a backbone.

• invertebrate

• vertebrate

Which include the simplest invertebrates.

• sponges

• jellyfish

• snails

• sea urchins

Which are the simplest invertebrates?

• anemones

• coral

• clams

• crabs

Where do the simplest invertebrates mostly live?

What percent of all animals are invertebrates?

Phyla of invertebrates that live on land, have a head end and a tail end, and have bodies divided into rings.

• mollusks

• worms

• echinoderms

• arthropods

Mollusks that have shells.

• snails

• sea stars

• clams

• oysters

What is the largest invertebrate?

The largest invertebrate is in what phylum?

• mollusk

• echinoderm

• arthropod

• crustacean