As in birds,the __________ acts to grind food in the earthworm digestive tract.
A) gastric mill
B) pharynx
C) crop
D) gizzard
E) stomach
Correct Answer:
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Q20: _ are sensory pits on the heads
Q21: The superficial external rings on a leech
Q22: The girdle-like structure used for mucus secretion
Q23: Clitellates may be characterized as _ with
Q24: Over the last several thousand years,leeches have
Q26: Clitellate reproduction may be characterized by
A)the female
Q27: The _ is a thin-walled storage area
Q28: In the clade Clitellata,the larval form is
A)a
Q29: Leeches typically lack
A)segments.
B)a digestive tract.
C)sense organs.
D)a pharynx.
E)setae.
Q30: Leeches belong to the annelid clade
A)Oligochaeta.
B)Chaetognatha.
C)Hirudinea.
D)Gnathobdellida.
E)Errantia.
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