Cnidarians include which of the following?

Tapeworms and Planarians are

Nematodes include which of the following?

The hydra is a member of which phylum?

Which characteristic below is NOT related to animals?

Without sunlight, animals cannot digest their food.

Which of the following have bilateral symmetry? (Check all that apply)

Animals are heterotrophic.

Sponges filter microscopic organisms from the water.

Check all those below that have radial symmetry.

Coral reefs are built by small animals called sponges.

Which kind of chemical found in water pollution can damage coral reefs?

Offshore coral reefs provide homes for the young of ___________ species that people eat.

Which of the following has NOT been used as an artificial coral reef?

Reef balls are made out of a special kind of ______ that does not dissolve in seawater.

Because reef balls are molded around a __________, they can be moved to the site easily.

The simplest of all animals is the __________________.

Which choice below is an advantage of reef balls.

Choose below those structures that could serve as artificial coral reefs.

The body of a sponge is covered with many small openings called ____________.

Organisms permanently attached to one place are _______.

A hermaphrodite is an animal that produces ___________.

Sponge larvae have _________ that allow them to swim about in water.

A cnidarian with a _____________ form body plan is bell-shaped and free swimming.

Cnidarians reproduce ______________.

The nerve net of a cnidarian carries _______________.

Scientists think that the first form of cnidarian was the ....

All of the following are groups of cnidarians EXCEPT ....

Collar cells function to ....

What are spicules made of? (Check all that apply)

Nematocysts paralyze prey by releasing ________________.

Most flatworms live in saltwater, while others live in _______.

Planarians are _____________ flatworms.

The body of a planarian is covered with __________.

Most planarians are ______________, exchanging sperm with one another.

Body segments of a tapeworm are called ____________.

Tapeworms use ________________ to attach to intestinal walls - it is composed of hooks and suckers.

Humans get ____________ by walking barefoot over dirt in the deep South.

Humans develop _____________ by eating undercooked pork.

A young worm with a protective covering is called a _________.

Roundworms are members of phylum ____________.

Roundworms are _______________,

All worms have this type of symmetry.

The bell-shaped body plan of cnidarians.

An example of a filter-feeder.

The ability to replace lost body parts.

Corals, jellyfish, hydra and sea anemones are ....

Phylum said to have a "tube within a tube".

Cells are organized into only two layers.