Which one of the following correctly describes the location of some body parts in the earthworm Pheretima

Options

A. Two pairs of accessory glands in 16-18 segments
B. Four pairs of spermathecae in 4 – 7 segments
C. One pair of ovaries attached at intersegmental septum of 14th and 15th segments
D. Two pairs of testes in 10th and 11th segments

Answer

D

Explanation

There are two pairs of testis in 10th and 11th segment. Each testis arises from the anterior wall of each testis sac. Immature spermatozoa produced by the testis first enter testis sacs and than make their way into seminal vesicle.