Read the following statements.
Statement-I: Four pairs of spermathacal apertures are located on ventrolateral sides of intersegmental grooves from 5^th-9^th segments in Pheretima.
Statement-II: In mature earthworm setae are absent in first, last and clitellum.
In the light of given statements, choose the correct answer from the options given below.

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Both statement-I and statement-II are incorrect.

Statement-I is correct but statement-II is incorrect.

Statement-I is incorrect but statement-II is correct.

Both statement-I and statement-II are correct.

answer is D.

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Detailed Solution

Four pairs of spermathecal apertures are located on intersegmental grooves of 5^th-9^th segments (one pair in each segment). Spermathecae receive and store spermatozoa during copulation.

In each body segment, except the first, last and clitellum, there are rows of S-shaped setae, embedded in the epidermal pits in the middle of each segment.

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