Question

Which of the following would be considered a prezygotic reproductive barrier? (select all that apply)

O a. hybrid sterility
Ob. zygote mortality
O c. mechanical isolation
O d. behavioral isolation

Answer 1

A prezygotic reproductive barrier refers to mechanisms that prevent the formation of a zygote between different species. Mechanical isolation and behavioral isolation are two examples of prezygotic barriers.

Step-by-step explanation:

A prezygotic reproductive barrier refers to a mechanism that prevents the formation of a zygote between individuals of different species. In this case, the options that can be considered prezygotic barriers are:

• Mechanical isolation: This occurs when the reproductive structures of two species are physically incompatible, preventing mating or successful reproduction. For example, if the genitalia of two species do not align, mating cannot occur.
• Behavioral isolation: This occurs when differences in behaviors or mating rituals prevent individuals of different species from recognizing or successfully mating with each other. For instance, if two species have different courtship displays, they are less likely to mate.

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