Which one of the following correctly describes the location of some body parts

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

Options

(a) Four pairs of spermathecae in 4 – 7 segments
(b) One pair of ovaries attached at intersegmental septum of 14th and 15th segments
(c) Two pairs of testes in 10th and 11th segments
(d) Two pairs of accessory glands in 16 – 18 segments

Correct Answer:

Two pairs of testes in 10th and 11th segments

Explanation:

In Pheretima two pairs of testes sacs are situated in the 10th and 11th segments. Each testes sac of the 10th segment encloses a testes and a seminal funnel. Each testes sac of the 11th segment encloses a testes, a seminal vesicle and a seminal funnel

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Topics: Structural Organisation In Animals (175)
Subject: Biology (4253)

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