How can you distinguish an ectoproct from a hydroid?
A) The hydroid colony is very small,perhaps a few millimeters long,while the ectoproct is centimeters long
B) The hydroid has the anus within the tentacular crown and the ectoproct has the anus outside the crown
C) The hydroid lacks any complex digestive gut including any anus
D) The hydroid has more complex musculature and innervation
E) Only hydroids form moss-like colonies
Correct Answer:
Verified
Q8: The lophophore contains an extension of the
A)protocoel.
B)metacoel.
C)mesocoel.
D)pseudocoel.
E)None
Q9: Which group is so specialized that they
Q10: The _ is the secreted body wall
Q11: The digestive system of a phoronid worm
Q12: Reproduction and development in phoronid worms involves
A)monoecious
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
Q18: Which is NOT a correct description of
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