Sponges and Cnidarians

Front

What is an invertebrate?

Back

An animal without a backbone.

Front

This form of cnidaria is known as a _______.

Back

medusa.

Front

Cnidarians have what kind of symmetry?

Back

Radial symmetry.

Front

Nematocysts (stinging cells) are used for...

Back

Both defense and catching organisms for food.

Front

Means to not move from place to place.

Back

sessile.

Front

What is a polyp?

Back

A cylindrical form of cnidarian that is usually sessile.

Front

What is the main characteristic of sponges?

Back

They are porous and lack true tissues.

Front

How do sponges obtain food?

Back

Through a process called filter feeding.

Front

What is the role of choanocytes in sponges?

Back

They help in water circulation and food capture.

Front

What type of body plan do cnidarians exhibit?

Back

They exhibit a simple body plan with two main forms: polyp and medusa.