Echinoderms Quiz

What does “echinoderm” mean?

• Soft body

• Spiny skin

• Water animal

• Five legs

Tags

NGSS.MS-LS4-2

Which organism is an echinoderm?

• Jellyfish

• Crab

• Sea Star

• Sponge

What system do echinoderms use for movement and feeding? (NGSS: Structures & Functions)

• Digestive system

• Water vascular system

• Muscular foot

• Gills

Tube feet help echinoderms mainly by:

• Producing oxygen

• Allowing movement and suction

• Making food

• Storing water

Adult echinoderms show which type of symmetry? (NGSS: Patterns)

• Bilateral

• Spiral

• Radial

• Segmented

Which echinoderm can eject its internal organs as a defense?

• Sea cucumber

• Sea star

• Sea urchin

• Sand dollar

Sea urchins use “Aristotle’s lantern” for:

• Eating and scraping algae

• Swimming

• Breathing

• Sound communication

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

What do most sea stars eat?

• Fish

• Bivalves like clams

• Plankton

• Coral

Tags

NGSS.MS-LS2-3

How do sea stars open a clam? (NGSS: Structure & Function cause-effect)

• Drill holes

• Inject venom

• Pry shell open with tube feet

• Crush it with spines

Which process best explains how echinoderms regrow lost arms? (NGSS: LS1.B Growth & development)

• Photosynthesis

• Regeneration

• Fermentation

• Reflection