Phylum Echinodermata Quiz Review

What type of body symmetry do echinoderms display?

• Bilateral
• Asymmetry
• Radial
• Concentric

What type of skeleton do sea stars have?

• Internal skeleton
• External skeleton
• Exoskeleton
• No skeleton

Echinoderm skeletons are made of calcium carbonate plates fused together called...

• Shell
• Spines
• Ossicles
• Pen

What does the phylum name "Echinodermata" mean?

• Smooth skin
• Shiny skin
• Spiny skin
• Special skin

True or False: All echinoderms live in water.

• True
• False

What is the main function of the water vascular system?

• Locomotion
• Feeding
• Reproduction
• All of the above

True or False: All echinoderms are carnivores.

• True
• False

How do echinoderms reproduce? (PICK TWO)

• Asexually by regeneration
• Asexually by budding
• Sexually by external fertilization
• Sexually by internal fertilization

Where does water enter and leave the starfish?

• Mouth
• Madreporite
• Tube feet
• Anus

What is the difference between the oral and aboral surface on a starfish? (SELECT TWO)

• Oral surface includes the madreporite and anus
• Oral surface includes the mouth
• Aboral surface includes the mouth
• Aboral surface includes the madreporite and anus