Scienc3e Christmas Review

Which is the largest group of invertebrates?

• Arthropods

• Mollusk

• Stinging Cell Animal

• echinoderm

• Worms

An animal with a backbone is called a _______

• vetebrate

• invertebrate

Which is NOT an invertebrate?

• jelly fish

• worm

• octopus

• fish

Invertebrates make up about ___________ percent of all animals on earth.

• 10

• 75

• 50

• 97

Invertebrates with soft bodies are called _______________.

• mollusks

• stinging cell animals

• arthropods

What three things are a mollusks feet used for?

• crawling, swimming, digging

• walking, swimming, jumping

• crawling, jumping, digging

Which is NOT a mollusk?

• octopus

• squid

• conch

• clam

• jellyfish

Which part of the mollusk protects the organs and helps to make its shell?

• foot

• body mass

• mantle

• head

Which mollusk has one shell?

• cephalopods

• bivalves

• gastropods

Which invertebrate is a bivalve?

• clam

• snail

• squid

• octopus