Cnidarians
Mollusks
Echinoderms
Worms
General
100
Provide an example of a cnidarian

Jellyfish, sea anemone, corals, hydra

100

What are the 3 types of mollusks?

Gastropods, cephalopods, bivalves

100

What is an example of an echinoderm?

Star fish, sea urchin, brittle star, sea lily, sea pig

100

Provide an example of a segmented worm

Earthworms, leeches, feather worms, clam worms

100

What different kinds of symmetry might an animal have?

Bilateral or Radial

200

What does the name cnidarian refer to?

Stinging cnidocytes in the tentacles of organisms in this phylum

200

Provide an example of a bivalve

Clams, oysters, muscles
200

What kind of symmetry do most echinoderms have?

Radial symmetry

200
Which would you expect to have a more "complex" body plan: Free living vs parasitic worm

Free-living worms

200

Describe the structure of a sponge

Needle-like spicules provide structure, collar cells help move water through the sponge and engulf food

300

What are the two primary forms or stages of development that organisms of this phylum may take?

Medusa vs polyp

300

Provide an example of a cephalopod?

Octopus, squid

300

Where would you expect to find echinoderms?

All ocean zones, especially intertidal and abyssal ocean zones

300

What are the 3 types of worms?

Round, flat, segmented
300

What does "cephalization" refer to?

The concentration of nerves/senses in one place, the head, of an organism

400

What kinds of skeletal structures might you find in a cnidarian?

Hydrostatic - jellyfish or sea anemone

Exoskeleton - coral

400

What is a slug an example of?

A gastropod

400

What is unique about the body structure of an echinoderm?

Water-vascular system

Tube feet - hollow feet that are joined by a water canal or open circulatory system

They are also capable of regeneration

400
Provide an example of a flatworm
Tapeworms, flukes, planarians
400

What kinds of skeletal structures might an animal have?

Exoskeleton, Endoskeleton, Hydrostatic