Zoology Spring Midterm Review

Which of the following organisms is NOT an echinoderm?

• sea cucumber
• sand dollar
• nudibranch
• brittle starfish

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

What phylum do echinoderms belong to?

• Cnidaria
• Porifiera
• Echinodermata
• Chordata

Which is an example of an Asteroidea member?

• sea star
• sea cucumber
• sea urchin 
• sand dollar 

What echinoderm is this?

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

What echinoderm is this? 

• sand dollar
• sea urchin 
• sea star
• brittle star

Organ in starfish that can turn itself inside out when feeding

• pyloric stomach
• madreporite
• cardiac stomach
• digestive gland

Which is an example of a Holothuroidea member? 

• sea star
• sea cucumber
• sand dollar
• sea urchin 

Which is an example of an Echinoidea member? 

• sea star
• sand dollar
• sea cucumber
• sea lilies