Phylum Echinodermata

What echinoderm is this?

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

Tags

NGSS.MS-LS4-2

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

What phylum do echinoderms belong to?

• Cnidaria
• Porifiera
• Echinodermata
• Chordata

A brittle star uses its flexible arms for movement.

• true

• false

What is the process of regeneration?

• When an animal sheds its exoskeleton.

• When an animal can clean the ocean floor.

• When an animal can regrow a body part.

• When an animal recycles plastic bottles and cans.

Which of the following is the opening of a sea star's water vascular system?

• stone canal
• madreporite
• ring canal
• tube feet

What are these?

• Mouth
• Anus
• Madreporite
• Tube foot

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

NGSS.MS-LS4-2

The larva of echinoderms have _____ symmetry.

• Asymmetrical
• Bilateral
• Radial
• None