Front

What is the 'hollow gut' of a cnidarian?

Back

gastrovascular cavity

Front

Do cnidarians have a central nervous system?

Back

No, they have nerves but no central nervous system.

Front

True or False: Hydra are found mostly in freshwater.

Back

True

Front

What do coral reefs protect the land from?

Back

erosion

Front

True or False: Fish, shrimp, and other small animals live among the tentacles of large sea anemones.

Back

True

Front

What is the primary function of cnidocytes in cnidarians?

Back

To capture prey and defend against predators.

Front

What are the two main body forms of cnidarians?

Back

Polyp and medusa.

Front

What type of symmetry do cnidarians exhibit?

Back

Radial symmetry.

Front

What is mesoglea in cnidarians?

Back

A jelly-like substance that separates the two layers of cells in the body.

Front

What is the role of the gastrovascular cavity in cnidarians?

Back

It serves both digestive and circulatory functions.