10B REVIEW QUESTIONS

(True or False) Because most worms are round in cross-section, they are considered to have radial symmetry.

• True

• False

Answer explanation

Worms have bilateral symmetry

The spiny-skinned invertebrates are:_______

• mollusks

• echinoderms

• crustaceans

• arthropods

Why are sea anemones, earthworms, and squid all classified as invertebrates?

• Becuase they have exoskeletons

• Becuase they are chelicerataes

• Becuase they all lack backbones

Which invertebrate group has no symmetry, no Cephalization, and no gut?

• Cnidarians

• Worms

• Echinoderms

• Artrhopods

• Sponges

Which 2 invertebrate groups have radial symmetry?

• Worms

• Cnidarians

• Arthropods

• Echinoderms

• Mollusks

What characteristic can be used to distinguish different groups of arthropods?

• Whether they have backbones

• Whether they have guts

• The number of appendages ( such as legs or antannae)

You find an animal with an exosekelelton and jointed legs. Which invertebrate group does it belong to?

• Echinoderms

• Mollusks

• Cnidarians

• Arthropods

What are the 6 major groups of invertebrates? Check all that apply

• Sponges

• Cnidarians

• Worms

• Echinoderms

• Mollusks

T or f: all living things are vastly complex

• True

• False

T or f: creationists can talk about “relative complexity” - the fact that some animals are relatively more complex than others (like worms vs mammals). But, they agree that all animals are complex.

• True

• False