Cnidarians

Front

What are cnidocytes?

Back

Specialized cells in cnidarians that contain nematocysts, used for capturing prey and defense.

Front

What are nematocysts?

Back

Stinging structures found within cnidocytes that release toxins to immobilize prey.

Front

What is the main characteristic of invertebrates?

Back

Invertebrates are animals that do not have a backbone.

Front

What does the term 'Cnidaria' refer to?

Back

It refers to the phylum of animals characterized by stinging cells.

Front

What body structure do jellyfish have?

Back

Jellyfish have a medusa body structure.

Front

What is a polyp?

Back

A cylindrical body form of cnidarians, typically attached to a substrate.

Front

What is a medusa?

Back

A free-swimming, umbrella-shaped body form of cnidarians.

Front

What is the symbiotic relationship between corals and zooxanthellae?

Back

Corals provide a habitat for zooxanthellae, while zooxanthellae provide nutrients through photosynthesis.

Front

What are the main classes of cnidarians?

Back

Hydrozoa, Scyphozoa, Anthozoa, and Cubozoa.

Front

What is the role of the gastrovascular cavity in cnidarians?

Back

It serves as both a digestive and circulatory system.