Echinodermata/Mollusca

What type of body symmetry do all adult echinoderms have?

• Bilateral

• Asymmetrical

• Radial

• All the above

What phylum do sea stars, sea urchins, sand dollars, brittle stars, and sea cucumber belong to?

• Animalia

• Annelida

• Echinodermata

• Mollusca

What class are sea stars a part of?

• Asteroidea

• Echinoidea

• Holothuroidea

• Ophiuroidea

What part of a sea star allows it to move from one place to another?

• Radial canal

• Tube feet

• Ampullae

• Stone canal

What echinoderm is this?

• sea lily 
• sea urchin 
• sea cucumber 
• sand dollar 

What does the term echinoderm mean?

• tube feet
• star shaped
• spiny skin
• stomach foot

Echinoderms have an internal skeleton and a system of fluid-filled tubes called a(n)...

• water vascular system
• nervous system
• notochord
• ampulla

Sea stars feed by

• Injecting poison that digests the prey 
• Everting their stomach to digest prey
• Chewing their prey with jaws and teeth
• squeezing their prey until it dies

Tags

NGSS.MS-LS1-7

What are these?

• Mouth
• Anus
• Madreporite
• Tube foot

Tags

NGSS.MS-LS4-2

What is the radula used for?

• Locomotion
• Feeding
• Swimming
• Digging

Tags

NGSS.MS-LS2-1