Which is NOT a correct description of the function of the phoronid lophophore?
A) It can be extended for feeding and completely withdrawn for protection
B) The mouth lies between the two ridges of the lophophore
C) Each ridge of a lophophore has hollow ciliated tentacles that are extensions of the body wall
D) Cilia on the tentacles direct the water current down the ridges and toward the mouth
E) All of the choices are correct
Correct Answer:
Verified
Q13: How can you distinguish an ectoproct from
Q14: Entoprocts
A)are mostly freshwater.
B)are wormlike.
C)have an incomplete digestive
Q15: The phoronid circulatory system:
A)is a closed system
Q16: Ectoproct colonies have modified zooids to
A)assist in
Q17: The _ includes the lophophore,digestive tract,muscles,and nerve
Q19: Brachiopoda
A)are called bryozoans.
B)have a mantle and two
Q20: Statoblasts are usually formed
A)in the winter.
B)in the
Q21: The fossil record of brachiopods shows
A)they have
Q22: Brachiopods reproduce and develop
A)with separate sexes.
B)usually with
Q23: The chamber in which each zooid of
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