A) liver fluke
B) hookworm
C) tapeworm
D) earthworm
Correct Answer: B
Solution :
Hookworm (Necator) belongs to phylum-Aschelminthes is a dioecious animal. In Aschelminthes, sexes separate and sexual dimorphism usually seen. Male smaller than female, gonad continuous with reproductive ducts. Fertilization internal, eggs microscopic, development indirect with many juvenile stage.
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