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Phylum Echinodermata - Statistics

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General Stats
  • This quiz has been taken 3 times
  • The average score is 10 of 17
Answer Stats
Hint Answer % Correct
What do serpent stars primarily use their arms for? Locomotion
100%
Where are the ambulacral grooves? On the oral-side arms
100%
What kind of symmetry do echinoderms primitively have? Secondary pentamerous radial symmetry
100%
Which class contains the sea stars? Asteroidea
50%
What makes irregular echinoids unique? Biradial symmetry, flat, fur-like spines, no podia
50%
Which class contains the sea daisy? Concentricycloidea
50%
Which class contains the sea lilly and feather stars? Crinoidea
50%
Which class contains the urchins and sand dollars? Echinoidea
50%
Which class contains the sea cucumbers? Holothuroidea
50%
What is the name of the visible spot on the aboral end of an echinoderm? Madreporite
50%
Where have sea daisies been found? On sea logs
50%
Which class contains the basket stars and serpent stars? Ophiuroidea
50%
What have sea cucumber tube feet evolved into? Oral tentacles
50%
Name for the spines of the internal skeleton Ossicles
50%
How do sea cucumbers facilitate respiration? Respiratory trees
50%
What do echinoderms use for locomotion? The water-vascular/ambulacral system
50%
What determines whether or not a crinoid is motile or sessile? Whether it is stalked
50%
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