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Standard XII
Biology
Question

Spermathecal pores of Pheretima are present in ............ segments.
  1. 5/6, 6/7, 7/8 and 8/9
  2. 1/2, 2/3, 3/4 and 4/5
  3. 6/7, 7/8, 8/9 and 9/10
  4. 14/15, 15/16, 16/17 and 17/18

A
5/6, 6/7, 7/8 and 8/9
B
6/7, 7/8, 8/9 and 9/10
C
1/2, 2/3, 3/4 and 4/5
D
14/15, 15/16, 16/17 and 17/18
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Solution
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Spermatheca is pear shaped internal sacs, which receive and store sperm during the process of copulation. There are four pairs of spermatheca present in an earthworm in the 5/6, 6/7 7/8 and 8/9 segments. The spermatheca opens externally by four pairs of separate spermathecal pores lying ventrolaterally in the grooves between 5/6, 6/7, 7/8 and 8/9 segments. Thus, the correct answer is option A.

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