The ciliated larva of an acorn worm is called the
A) brachiolaria.
B) bipinnaria.
C) tornaria.
D) trochophore.
E) pluteus.
Correct Answer:
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Q39: Sea urchins and sand dollars belong to
Q40: The primary circulatory medium in echinoids is
A)blood.
B)hemal
Q41: The nervous system of enteropneusts is _
Q42: The common name acorn worm is derived
Q43: The circulatory system of enteropneusts sends blood
Q45: The water vascular system of echinoderms carries
Q46: Ambulacrarians and chordates are united into the
Q47: Echinoderms and hemichordates are more closely related
Q48: Enteropneusta are wormlike as adults and pterobranchia
Q49: Synchronous spawning by enteropneusts suggests the presence
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