Final answer:
Temporal isolation is a prezygotic barrier that occurs before the formation of a zygote and contributes to reproductive isolation by causing differences in breeding schedules that prevent species from mating.
Step-by-step explanation:
Temporal isolation is a type of reproductive barrier where differences in breeding schedules can prevent species from mating. Specifically, temporal isolation is a prezygotic barrier, which means it occurs before the formation of a zygote. As an example, if two frog species share the same habitat but breed at different times of the year, such as one breeding from January to March and the other from March to May, they are considered to be temporally isolated. This temporal difference in reproductive timing prevents the two species from interbreeding, thereby contributing to reproductive isolation.