1100 Biology: Echinoderms

Echinodermata means:

• pore-bearing

• spiny skin

• soft

• hollow-intestine

What are the unique features of an Echinoderm?

• radial symmetry

• shell

• tubular foot

• ventral muscular foot

• endosekeleton

What are examples of Echinoderms?

• Squids

• Snails

• Starfishes

• Sea anemones

• Sea urchins

T or F: Echinoderms live in both water and land.

• TRUE, Echinoderms live both in water and land

• FALSE, Echinoderms dwell totally in water/marine environments

T or F: The function of tube feet in Echinoderms is for locomotion and feeding.

• TRUE, tube feet is used for locomotion and feeding

• FALSE, tube feet is used for locomotion only

It is where seawater enters in Echinoderms.

• tubular foot

• central disk

• suction disks

• mouth

T or F: Echinoderms are herbivores.

• TRUE, Echinoderms are herbivores

• FALSE, Echinoderms are carnivores

Echinoderms feed on:

• microorganisms

• mollusks

• crustaceans

• squids

• tube-worms

T or F: The endoskeleton of an echinoderm is composed of soft plates and joined by connective tissue.

• TRUE, the endoskeleton is composed of soft plates.

• FALSE, the endoskeleton is composed of hard plates.

T or F: Most Echinoderms are bottom dwellers and rely on their ventral muscular foot.

• TRUE, they rely on their ventral muscular foot

• FALSE, they rely on their tubular foot