Free-living flatworms have
A) ocelli.
B) tactile cells.
C) chemoreceptors.
D) all of these
Correct Answer:
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Q34: The monogenetic flukes
A)are mostly ectoparasites of fish.
B)are
Q35: Rotifers
A)are primarily marine.
B)are dioecious.
C)lack an excretory system.
D)lack
Q37: The mastax of a rotifer is used
Q38: Turbellarians have light-sensitive organs called _.
Q42: Most monogeneans are external parasites of _.
Q42: Turbellarians have rod-shaped _ in the epidermis
Q43: The repeated reproductive units of tapeworms are
Q44: Asexually reproducing stages of digeneans in their
Q46: The free-swimming,ciliated stage that hatches from a
Q47: Trematodes have a body covering known as
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