The females of one of the following classes possess a single overy, that is:
Correct answer: D. Aves
- A. Pisces
- B. Amphibia
- C. Reptilia
- D. Aves
Explanation
The correct answer is Aves. Female birds generally possess a single ovary on the left side of their body, an adaptation believed to support flight by minimizing body weight. In contrast, the other vertebrate classes listed-Pisces, Amphibia, and Reptilia-usually have two ovaries. This bilateral ovary arrangement is suited to their respective environments and does not have the weight constraints associated with flight.
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