NEET BIOLOGY

Detailed explanation-1: -In allopatric speciation, groups become reproductively isolated and diverge due to a geographical barrier.

Detailed explanation-2: -Many organisms only reproduce at certain times of the year, often just annually. Differences in breeding schedules, called temporal isolation, can act as a form of reproductive isolation.

Detailed explanation-3: -a) Temporal isolation. Individuals of different species do not mate because they are active at different times of day or in different seasons.

Detailed explanation-4: -Answer and Explanation: Reproductive isolation causes speciation because two separate populations of organisms are no longer able to exchange genes. This means that mutations can occur separately in both populations, producing variations in each group that are not present in the other.