Which of the following is not a prezygotic barrier to speciation?

• A. Temporal isolation
• B. Behavioral isolation
• C. Hybrid sterility
• D. Mechanical isolation

Answer: (C)

Verified step by step guidance

1. Understand the concept of prezygotic barriers: Prezygotic barriers are mechanisms that prevent mating or fertilization between different species. These barriers occur before the formation of a zygote.
2. Identify examples of prezygotic barriers: Common prezygotic barriers include temporal isolation, behavioral isolation, mechanical isolation, and habitat isolation.
3. Define temporal isolation: Temporal isolation occurs when two species breed at different times of the day, season, or year, preventing them from mating.
4. Define behavioral isolation: Behavioral isolation involves differences in mating rituals or behaviors that prevent species from recognizing each other as potential mates.
5. Define mechanical isolation: Mechanical isolation happens when differences in physical structures prevent successful mating between species.