Question

_____ prevent hybrid offspring from developing or if the hybrid is born, it is infertile.
multiple choice
○ prezygotic reproductive isolating mechanisms
○ temporal isolation mechanisms
○ postzygotic isolating mechanisms
○ behavioral isolating mechanisms

Explanation:

To solve this, we analyze each option:

• Prezygotic mechanisms prevent fertilization (before zygote formation), so they don’t relate to hybrid offspring development/infertility.
• Temporal isolation is a type of prezygotic isolation (different mating times), not about hybrid offspring after birth.
• Postzygotic isolating mechanisms act after fertilization (zygote formation), including preventing hybrid development or causing hybrid infertility. This matches the description.
• Behavioral isolation is prezygotic (different mating behaviors), not about hybrid offspring post - birth.

Answer:

C. Postzygotic isolating mechanisms