Marine Invertebrates
Cnidarians
Poriferans and Mollusks
Echinoderms
Arthropods
100

This is the phylum that contains sea sponges.

Porifera

100

This is the body plan that jellyfish have.

Medusa

100

These are the needle-like structures on a sea sponge.

Spicules

100

This is the kind of symmetry echinoderms have

Pentaradial symmetry

100

The kind of appendages that arthropods have.

Jointed appendages

200

This is the phylum that lobsters belong to.

Arthropoda.

200

This is the substance used by coral polyps to build their skeleton.

Calcium carbonate

200

This is the number of shells bivalves have.

2

200

Echinoderms have this instead of a brain

Nerve ring

200

These are appendages that have been modified into claws

Chelipeds

300

This is the phylum sea urchins belong to.

Echinodermata

300

This is the kind of symmetry cnidarians have.

Radial

300

This is the part of a mollusk that contains all its vital organs.

Visceral mass

300

This is the number of parts that an echinoderm's body is split into.

5 parts

300

This is the tip of a lobster's tail

Telson

400

This is an animal that eats by taking in water and filtering organic matter out of it.

Filter feeder

400

These are specialized stinging cells on a cnidarian's tentacles.

Nematocysts

400

This is a kind of sexual reproduction in which gametes are released into the water.

Spawning.

400

This is the meaning of the word "echinoderm"

spiky skin

400

This hard shell protects some arthropods' head and thorax

Carapace

500

This is the phylum that contains octopuses.

Mollusca

500

This is a method of asexual reproduction in which the organism clones itself.

Budding.

500

These are the 3 parts of a mollusk's body plan.

The head, the foot, and the visceral mass

500

Please name one example of an echinoderm.

Starfish, sea cucumber, sea urchin, sand dollar, etc.

500

These are the three body segments of an arthropod

The head, thorax, and abdomen

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