Echinoderm

Which of the following is an echinoderm?

• sea cucumber

• snail

• slug

• honey bee

In addition to radial symmetry, echinoderms have a water-vascular system.

• True
• False

The hard, spiny skin of an echinoderm is called an exoskeleton.

• True
• False

All echinoderms except the sand dollar display a five-part radial symmetry.

• True
• False

The adult form of all echinoderms exhibits radial symmetry.

• True
• False

Sea stars are carnivores and are among the most important predators in many marine ecosystems.

• True
• False

In some echinoderms, respiration and waste removal are performed by skin gills.

• True
• False

A separated piece of a sea star can regenerate the rest of its body as long as the piece contains part of the central region of the animal.

• True
• False

Starfish digest food inside and outside there body.

• True
• False

Tags

NGSS.MS-LS1-7

Each arm of a starfish produces sperm and egg cells.

• True
• False

Tags

NGSS.MS-LS3-2