Sponges
Cnidarians
Mollusks and echinoderms
Arthropods
100

What is the Simplest multicellular animal alive today?

Sponges!

100

All Cnidarians have tentacles, true or false?

True!

100

Give me one example of a mollusk

squid, octopus, snail, slug

100
Do Arthropods have an endoskeleton or an exoskeleton?

Exoskeleton!

200

Are Sponges sexual, asexual, or both?

Both!

200

Cnidarians have radial symmetry. What does Radial symmetry mean?

Their bodies grow and are organized in a circle.

200

Do bivalves have Gills, or do they absorb oxygen through their skin?

Gills!

200
Why do Arthropods need their hard shells?

protection and keeping all the moisture inside their bodies

300
How do sponges feed?
They use Filter Feeding!
300

what kind of symmetry do worms have?

Bilateral symmetry!

300

What kind of Mollusk is an octopus?

A Cephalopod!

300

How do Arthropods grow larger?

Molting their exoskeleton!

400

Sponges, as adults, are all sessile. What does Sessile mean?

They do not move from the place they attach themselves!

400

The 3 kinds of worms are segmented worms, flatworms, and roundworms. What kind of worm is NOT parasitic?

Segmented worms!

400
What is the primary defense for Echinoderms?

Tough skin and sharp spines!

400

Insects have 6 legs, Arachnids have 8 legs, how many legs does a crab have?

10! Another word for an animal with 10 legs is a decapod!

500

what is a Spicule?

A thin, needle like structure made of calcium or silicone that helps the sponge maintain its shape!
500

What is the name of the stinging cell on cnidarian tentacles?

Nematocyst!

500

What does the Latin for 'Echinoderm' mean?

Tooth skin!

500

Arachnids have a special kind of organ for breathing called what?

Book lungs!

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