The oral tentacles of the sea cucumber are
A) modified tube feet.
B) actually primitive lophophores.
C) elaborated pedicellariae.
D) also part of its respiratory tree.
E) completely new structures evolved in this group.
Correct Answer:
Verified
Q25: In echinoderms,the main coelomic compartment is
A)missing.
B)a somatocoel.
C)completely
Q26: Structures in each arm of a sea
Q27: How much nervous system does an echinoderm
Q28: "Bipinnaria" describes the
A)larval form of many echinoderms.
B)central
Q29: If the radial nerve in an arm
Q31: The respiratory tree of a sea cucumber
Q32: Sea stars reproduce mostly
A)by budding.
B)only asexually by
Q33: The five pairs of bursae in brittle
Q34: The designation of hemichordates as primitive chordates
Q35: If you went to the ocean and
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