Question:

Choose the incorrect statements regarding Hirudinea
  • A. Male reproductive system has cirrus.
  • B. They are exclusively marine and tubicolous.
  • C. Fertilization is external and development is direct.
  • D. Clitellum is conspicuous during the breeding season only.

Show Hint

Hirudinea have internal fertilization, and their development includes a larval stage (indirect development).
Updated On: May 14, 2025
  • A, C
  • B, D
  • C, D
  • B, C
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The Correct Option is D

Solution and Explanation

The incorrect statements are: - B: Hirudinea are not exclusively marine; they can also be found in freshwater.
- C: Fertilization in Hirudinea is internal and development is indirect.
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