Sponge/Cnidarian Exam

Front

What is the free-swimming form of Cnidarians?

Back

Medusa

Front

What are the stinging cells used by jellyfish to attack their prey called?

Back

Cnidocytes

Front

What are the hard 'skeleton' structures in a sponge called?

Back

Spicules

Front

To which class do freshwater sponges belong?

Back

Demospongiae

Front

What is the outer layer of a sponge made of?

Back

Pinacocytes

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 is the main characteristic that distinguishes sponges from other animals?

Back

Sponges lack true tissues and organs.

Front

What is the function of choanocytes in sponges?

Back

To create water currents and filter food particles.

Front

What type of symmetry do Cnidarians exhibit?

Back

Radial symmetry