____________ organs are ciliated sensory pits or slits that appear to be chemoreceptive for food gathering.
Correct Answer:
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Q19: Select the list of characteristics typical of
Q20: The polychaetes
A)belong to the smallest and most
Q21: The feathery arms of fanworms that trap
Q22: Darwin observed earthworm behavior where a worm
Q23: Conventional external fertilization involves both males and
Q25: Reproduction in the earthworm involves
A)asexual budding.
B)self-fertilization.
C)cross-fertilization between
Q26: A unique feature of the leech nervous
Q27: The Sipunculans live in burrows and feed
Q28: The circulatory system in the earthworm
A)is absent
Q29: Compared to earthworms,freshwater oligochaetes
A)have more conspicuous setae.
B)have
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