A) Presence of post-anal papillae
B) Presence of pre-anal papillae
C) Presence of penial setae
D) All the above
Correct Answer: D
Solution :
Male Ascaris is differentiable from female Ascaris tail end of male Ascaris is characterized by the presence of numerous genital papillae on ventral surface. There are 50 pairs of preanal papillae in front of cloaca, and 5 pairs of postanal papillae behind it. Sometimes, two chitinous spiculate process of equal size are seen protruding out of the cloacal aperture. These are called peneal setae or spicules which serve to transfer sperms into female vagina during copulation.
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