Cnidarian Practice Questions

Front

Where is the Great Barrier Reef located?

Back

Australia

Front

How are nervous responses in cnidarians controlled?

Back

by the nerve net

Front

How do cnidarians absorb oxygen from the water and expel carbon dioxide?

Back

Through diffusion

Front

What is the sessile, tube-shaped body form of cnidarians such as corals and hydra called?

Back

Polyp

Front

What is the free swimming, umbrella-shaped body with tentacles that hang down in cnidarians called?

Back

Medusa

Front

What type of symmetry do cnidarians exhibit?

Back

Radial symmetry

Front

What are the specialized cells in cnidarians that contain nematocysts?

Back

Cnidocytes

Front

What is the function of nematocysts in cnidarians?

Back

To capture prey and defend against predators

Front

What is the primary body cavity in cnidarians called?

Back

Gastrovascular cavity

Front

What type of reproduction do many cnidarians undergo?

Back

Both sexual and asexual reproduction