CHECKPOINT #5.5: Invertebrates Review

Front

What type of symmetry do echinoderms exhibit?

Back

Radial symmetry.

Front

How do sponges obtain their food?

Back

Sponges get their food by filter-feeding.

Front

What structure allows cnidarians to respond to stimuli?

Back

Nerve net.

Front

Do echinoderms have a head or brain?

Back

No, echinoderms have no head or brain.

Front

What are tube feet?

Back

Tube feet are structures that resemble long suction cups, part of the water vascular system, and help echinoderms move.

Front

What is the main characteristic of invertebrates?

Back

Invertebrates are animals that do not have a backbone.

Front

Name a common example of an echinoderm.

Back

Starfish (or sea stars) are common examples of echinoderms.

Front

What is the function of the water vascular system in echinoderms?

Back

The water vascular system helps with movement, feeding, and respiration.

Front

What are the main classes of cnidarians?

Back

The main classes of cnidarians are Hydrozoa, Scyphozoa, and Anthozoa.

Front

What is the role of tentacles in cnidarians?

Back

Tentacles are used for capturing prey and defense.