Mollusks and Arthropods

All arthropods have an outside suit of armor called a(n) __________________.

• indoskeleton

• exoskeleton

• vertebrate

• invertebrate

Which type of mollusk is an oyster?

• gastropod

• arthropod

• bivalve

• echinoderms

All arthropods have ______________ symmetry.

• radial

• bilateral

• asymmetric (no symmetry)

These types of shells are all _____________.

• bivalves

• gastropods

• clams

• slugs

Tags

NGSS.MS-LS4-2

Which characteristic is NOT found in all mollusks?

• mantle

• foot

• lungs or gills

• complex nervous systems

Tags

NGSS.MS-LS4-2

Which of the following is NOT one of the characteristics that make cephalopods different from other mollusks?

• They have a closed circulatory system

• They live in the ocean

• They are very smart

• They use tentacles to hunt

What does "having an open circulatory system" mean?

• the blood can leave the body

• the animal doesn't have a heart

• the blood is not contained in blood vessels

• the blood is blue in color

Which of the following is NOT shared by all arthropods?

• appendenges

• exoskeleton

• vertebrates

• segmented bodies

Tags

NGSS.MS-LS4-2

Crustaceans, arachnids, insect, millipedes and centipedes all belong to which group of invertebrates?

• Arthropods

• Cnidarians

• Mollusks

• Worms

Soft bodied invertebrate with a thick muscular foot for movement: some have shells

• molluks

• arthropod

• segmented worm

• sponge