Marine Invertebrates Quiz

Echinoderms (sea stars) have which type of symmetry (select the best choice)

• Bilateral

• 5-sided

• No Symmetry

• 3-sided

What do all invertebrates have in common?

• A brain

• No backbone

• Blue-colored blood

• Many legs

Tags

NGSS.MS-LS4-2

Which of the following is NOT an invertebrate?

• Catfish

• Cuttlefish

• Starfish

• Jellyfish

• Crayfish

Answer explanation

Catfish is a fish

Cuttlefish is a mollusc

Starfish is an echinoderm

Jellyfish is a cnidarian

Crayfish is an arthropod

What features do a clam, sea slug, and squid share in common? (select all right answers)

• They are all in the "Mollusca" Group

• They all have a brain

• They all have gills

• The all have a mantle

Tags

NGSS.MS-LS4-2

Which animal has eyes most like our own?

• Seastar

• Shrimp

• Octopus

Answer explanation

Seastars have primitive, light-sensing eyes. Shrimp have multiple eyes in "compound eyes". Octopi have simple eyes with a lens, like our own.

What is a marine sponge?

• Plant

• Animal

• Mineral

Tags

NGSS.MS-LS4-2

What type of invertebrate is a sea urchin?

• Mollusc (squid, slugs, clams)

• Echinoderm (sea stars)

• Arthropod (bugs, crabs, shrimp)

• Cnidaria (jellyfish and coral)

What type of animal is a barnacle?

• Arthropod (shrimp, crabs, bugs)

• Mollusc (squid, clams, slugs)

• Echinoderm (seastars)

• Cnidaria (jellyfish, corals)

What type of animal is a sea anemone?

• Arthropod (bugs, crabs)

• Mollusc (squid, clams, slugs)

• Echinoderm (seastars)

• Cnidaria (jellyfish, corals)

What type of animal is the sea bunny?

• Arthropod (bugs, crabs)

• Mollusc (slugs, squids, clams)

• Echinoderms (seastars)

• Cnidaria (jellyfish, corals)