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Sexual dimorphism is generally observed in-

Question: Sexual dimorphism is generally observed in-

Options:

Stunt nematodes
Burrowing nematodes
Lesion nematodes
Root-knot nematodes

✅Explanation: Sexual dimorphism refers to the distinct differences in appearance between males and females of the same species. In the case of nematodes, root-knot nematodes (Meloidogyne spp.) exhibit a pronounced sexual dimorphism.
Females: The females are pear-shaped and sedentary, permanently embedded within the host plant's roots. They are much larger than the males and responsible for producing eggs.
Males: The males are vermiform (worm-like) and motile. They are smaller than the females and their primary role is to fertilize the eggs.
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