Arthropoda and Echinoderm

Male crabs have a ____ -shaped abdomen while a female crabs abdomen is ____ -shaped

• U;V

• W;C

• V;U

• T;U

Tags

NGSS.MS-LS4-2

What type of echinoderm is this?

• sea lily 

• sea urchin 

• sea cucumber 

• sea star

Tags

NGSS.MS-LS4-2

What type of echinoderm is this?

• sea lily 

• sea urchin 

• sea cucumber 

• sea star

What are these external, fluid-filled muscular tubes found in echinoderms that serve as organs of locomotion.

• Tube feet

• Regeneration

• Test

• Aristotle's Lantern

Echinodermata means...

• stomach foot

• spiny skin

• segmented body

• jointed foot

An echinoderm with fragile branched arms.

• sea star

• brittle star

• sea urchin

• sand dollar

Tags

NGSS.MS-LS4-2

Which of the following is a characteristic feature of Arthropoda?

• Exoskeleton

• Endoskeleton

• Hydrostatic skeleton

• No skeleton

What type of symmetry do Echinoderms exhibit?

• Bilateral symmetry

• Radial symmetry

• Asymmetry

• Spherical symmetry

Which of the following is NOT a class within the phylum Arthropoda?

• Insecta

• Arachnida

• Crustacea

• Cephalopoda

What is the primary habitat of most echinoderms?

• Freshwater

• Terrestrial

• Marine

• Aerial