Cnidarians
Echinoderms
Mollusks
Catchphrases and Fun Facts
100

Name two cnidarians.

Jellyfish, sea anemone, coral

100

Name two Echinoderms.

Sea stars (starfish), sea urchins, brittle stars, sea cucumbers

100

Name two mollusks.

Snails, slugs, clams, oysters, mussels, squid, octopuses, cuttlefish

100
What are Cnidarians like? 

Sack-like, stinging cnidarians!

200

Cnidarians have how many openings?

One!

200

What is echinoderm skin like? 

Tough and spiky

200

What kind of bodies do mollusks have? 

Soft, muscular bodies
200

What are echinoderms like? 

Ouchy, inching echinoderms!

300
What body part surrounds cnidarian mouths?

Their stinging tentacles!

300

What kind of feet do echinoderms have? 

They have hundreds of little tube feet! 

300

What do mollusks have inside their bodies?

They have a large hollow cavity/open space.

300

What are mollusks like? 

Mushy, muscular mollusks!

400
Cnidarians have special defensive cells that can:

Sting! 

400

Echinoderms are radially: 

Symmetric! (If we pretended to slice them like a pie, all the sections would look the same and be equal sizes)

400

What does it mean if a mollusk is a bivalve?

It means they have two shells connected by a hinge

400

What is the only hard part of an octopus' body? 

Their beak! 

500

Sea anemones have a mutualistic relationship with which other animal? 

Clownfish! 

500

Brittle stars can be bioluminescent. What does this mean? 

It means they can produce their own light!

500

What is the difference between gastropods and cephalopods? 

Snails and Slugs are gastropods. Squid, octopus, and cuttlefish are cephalopods. 

500

What fuzzy creature likes to eat sea urchins and sea stars? 

Sea otters! 

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