1.

The marin fish among the following varieties isA. StromateusB. LabeoC. CirrhinaD. Catla

Answer» Correct Answer - A
In annelida four pairs of flask shaped sacs, each with a diverticulum for storgae of sperms and large ampulla for their nourishment is present. Spermathecase occur in 6-9 segments. They recive sperm during copulation. As cross fertilization occurs in earthworm, the sperms of one worm are transferred to spermathecase of the other.


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