Flashcard on Phylum Cnidaria

Front

What is the habitat of the hydra?

Back

Freshwater.

Front

What do corals secrete around their bodies?

Back

A calcium carbonate shelter.

Front

What type of body structure do sea anemones have?

Back

Polyp.

Front

What are the cell layers of Cnidarians formed from?

Back

Tissue.

Front

What classification do jellyfish and hydra belong to?

Back

Cnidarian.

Front

What is a defining characteristic of Cnidarians?

Back

They have specialized cells called cnidocytes that contain stinging structures.

Front

What are the two main body forms of Cnidarians?

Back

Medusa and Polyp.

Front

What is the primary function of the cnidocytes in Cnidarians?

Back

To capture prey and defend against predators.

Front

How do Cnidarians reproduce?

Back

They can reproduce both sexually and asexually.

Front

What is the role of the gastrovascular cavity in Cnidarians?

Back

It serves as both a digestive and circulatory system.