echinoderms

What does the term echinoderm mean?

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

What type of symmetry do adult echinoderms exhibit?

• Asymmetry
• Pentaradial symmetry
• Bilateral symmetry
• Trilateral symmetry

The larva of echinoderms have _____ symmetry.

• Asymmetrical
• Bilateral
• Radial
• None

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

What type of skeleton do echinoderms have?

• Exoskeleton
• Hydrostatic skeleton
• Endoskeleton
• Mesenteric skeleton

What allows water to enter the water vascular system?

• tube feet
• mouth
• ampulla
• madreporite

What are these?

• Mouth
• Anus
• Madreporite
• Tube foot

Tags

NGSS.MS-LS1-1

NGSS.MS-LS4-2

By what process will starfish regrow an arm torn off by a predator?

• Reconstructive meiosis
• Regeneration
• Tissue regenesis
• Mitotic restoration