Question

identify each reproductive barrier as prezygotic or postzygotic. differences in the timing of mating hybrid infertility incompatibility of reproductive anatomy * postzygotic barrier prezygotic barrier

Explanation:

• Differences in the timing of mating: Prezygotic barriers prevent fertilization. Different mating times mean gametes never meet, so it's prezygotic.
• Hybrid infertility: Postzygotic barriers occur after fertilization. Hybrid infertility happens in offspring (after zygote forms), so it's postzygotic.
• Incompatibility of reproductive anatomy: Prezygotic, as it stops fertilization by preventing gamete transfer.

Answer:

• differences in the timing of mating: prezygotic barrier
• hybrid infertility: postzygotic barrier
• incompatibility of reproductive anatomy: prezygotic barrier