Unit 3 test True/False

Front

There are more vertebrates in the ocean than invertebrates.

Back

False - Invertebrates outnumber vertebrates in the ocean.

Front

Slugs have a hard shell, while snails have a tiny shell inside their mantle or no shell at all.

Back

False - Snails have a hard shell, while slugs do not.

Front

Insects cannot be found in every habitat all over the world.

Back

False - Insects are found in nearly every habitat on Earth.

Front

Bivalves are not a part of the mollusk phyla.

Back

False - Bivalves are indeed part of the mollusk phyla.

Front

The four main groups of worms are ribbon worms, flatworms, segmented worms, and roundworms.

Back

True - These are the four main groups of worms.

Front

What are vertebrates?

Back

Animals with a backbone, such as fish, birds, and mammals.

Front

What are invertebrates?

Back

Animals without a backbone, such as jellyfish, insects, and worms.

Front

What is a mollusk?

Back

A diverse group of invertebrates that includes snails, clams, and octopuses.

Front

What is the difference between slugs and snails?

Back

Slugs lack a hard shell, while snails have a hard shell.

Front

What are bivalves?

Back

Mollusks that have two shells, like clams and oysters.