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How Many300
What body part on a sea star produces the tube feet by pumping water into them?
Ampullae
How Many 500
What is the name of the body part that allows water into a sea star for the water vascular system?
Madreporite
What’s That200
What species of marine mammals is able to prey on sea cucumbers despite their spines?
Sea Otters
What’s That300
A Pearl Fish is a small, slender fish that hides within the anus of a _____________. It comes out to feed but always returns to its host?
Sea Cucumber
What’s That400
Keyhole urchins have five slits that allow water to pass through, so they don’t get washed out of the sand by wave, what are they called?
Locules
What’s That500
What do we call the five sets of double rows that the flat tube feet emerge from on sand dollars?
Petaloids
Spiky 500
Sea stars and sea urchins belong to what classes?
Asteroidea = Sea Stars
Echinoidea = Sea Urchins
Nuts & Bolts 200
What kind of circulatory system do Echinoderms have?
None, have a water vascular system instead.
Nuts & Bolts 400
Explain how sea cucumbers eat?
Suck up sand and digest any organic matter and then defecate clumps of sand.
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