Question

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

• A. Two pairs of accessory glands in 1618 segments
• B. Two pairs of testes in ${10}^{th}and{11}^{th}$ segments.
• C. Four pairs of spermathecae in 47 segments
• D. One pair of ovaries attached at inter segmental septum of ${14}^{th}and{15}^{th}$ segments.

Answer 1

The correct option is B Two pairs of testes in ${10}^{th}and{11}^{th}$ segments.

Two pair of testes are located at the 10th and 11th segments. These produce spermatogonia. The sac is white with wide walls and is filled with fluid. The sac is bilobed. So the correct answer is B.