Invertebrates Quiz

The body of a sponge is covered with small openings called

• swimmerets

• pores

• flagela

• seate

Invertebrates with jointed legs are

• arthropods

• echinoderms

• mollusk

The bodies of many sponges contain sharp structures called

• spiracles

• collar cells

• spicules

Change in form some animals go through as they develop and mature

• molting

• growing

• developing

• metamorphosis

sponges are

• vertebrates

• invertebrates

early scientists classified sponges as

• parasites

• plants

• protist

• fungi

____ make up the largest group of complex invertebrates

• arachnids

• annelids

• crustaceans

• insects

structures that grow out from the body are

• arms

• appendages

• spicules

spiny-skinned invertebrates that live in the bottom of the ocean

• echinoderms

• mollusk

• annelids

• arthropods

Bivalves are different from other mollusks because they have

• 2 muscular feet

• no shell

• no muscular feet

• 2 shells