Which one of the following correctly describes the location of some body parts in the earthworm Pheretima?
Correct answer: C. Two pairs of testes in the 10th and 11th segments
- A. Four pairs of spermathecae in the 4th and 7th segments
- B. One pair of ovaries attached at the intersegmental septum of the 14th and 15th segments
- C. Two pairs of testes in the 10th and 11th segments
- D. Two pairs of accessory glands in the 16th and 18th segments
Explanation
In the Pheretima, two pairs of the testis sac are situated in the tenth and eleventh segments. Each testis sac of the tenth segment encloses a testis and a seminal funnel. Each testis sac of the eleventh segment encloses a testis, a seminal vesicle and a seminal funnel.
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