Echinoderms/Arthropods

What type of symmetry do echinoderms have as adults?

• Bilateral

• Radial

• Pentamourous radial

• Asymmetrical

How do echinoderms reproduce

• Broadcast spawning

• Specialized structure to transfer sperm

How do arthropods reproduce

• Specialized structures to transfer sperm

• Broadcast spawning

What type of symmetry do echinoderms have as larvae?

• asymmetrical

• pentamorous radial

• radial

• bilateral

What type of skeleton do arthropods have?

• endoskeleton

• exoskeleton

Which echinoderm would feed by protruding their mouth and secreting enzymes to help digest their food?

• sea cucumbers

• sea stars

• sand dollars

How are nutrients transported in the body of echinoderms?

• closed circulatory system

• open circulatory system

• coelomic fluid

Which echinoderm has respiratory trees for gas exchange?

• sand dollars

• sea cucumbers

• sea stars

• brittle stars

The nervous system includes a brain in

• arthropods

• echinoderms

What structure do sea stars use to move?

• tube feet

• arms

• spines