Life Science chapter 10B

All invertebrates

• have cephalization

  (head, important parts at the head)

• have complete guts

• are ectotherms

  (ecto=outside, external)

• are missing skeletons

Which group of animals is classified in phylum cnidaria?

(stinging invertebrates)

• corals and sea anemones

• earthworms, leeches, and bristle worms

• planarians, tapeworms, and flukes

• sea stars, sea urchins, and sea cucumbers

Which of the folllowing is NOT a group of mollusks?

(soft, unsegmented bodies commonly covered by hard shell)

• bivalves

• cephalopods

• crustaceans

• gastropods

Which category of invertebrates includes creatures that can fly?

• chelicerates

  (crab claw)

• crustaceans

  (having a crust or shell)

• echinoderms

  (sharp points skin)

• insects

  (cut into, animal with divided body)

Identify the three major cattegories of worms.

Give an example of an echinoderm.

(sharp points, skin)