Echinoderms Question Preview (ID: 4027)
Echinoderm Quiz.
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Which echinoderm is elongated and can regenerate its internal organs?
a) brittle star
b) sand dollar
c) sea cucumber
d) sea urchin
Which structure lies between the bivum rays?
a) ampullae
b) ring canal
c) madroporite
d) stone canal
Which are the oldest Echinoderms?
a) brittle stars
b) crinoids
c) sea cucumbers
d) sea urchins
What type of body plan do echinoderms have?
a) bilateral symmetry
b) pentaradial symmetry
c)
d)
Which structures are found in the central disk of a sea star?
a) mouth and gonads
b) mouth and stomach
c) digestive glands and gonads
d) digestive glans and stomach
Which echinoderm structures aid in movement, feeding and respiration?
a) antennae
b) gills
c) swimmerets
d) tube feet
What is the correct order for water flow entering a sea star?
a) madroporite, ring canal, stone canal, radial canal, lateral canal, tube feet
b) madroporite, stone canal, ring canal, radial canal, lateral canal, tube feet
c) stone canal, ring canal, radial canal, tube feet, madroporite
d) tube feet, madroporite, ring canal, stone canal, radial canal
Which echinoderm adaptation makes them more advanced than any other invertebrate?
a) endoskeleton
b) exoskeleton
c) pentaradial symmetry
d) tube feet
How many years have Echinoderms existed?
a) 5 million
b) 10 million
c) 100 million
d) 500 million
What does the word echinoderm mean?
a) soft skin
b) furry skin
c) hairy skin
d) spiny skin
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