AP BIOLOGY

Detailed explanation-1: -In the type of reproductive isolation called behavioral isolation, two populations are separated by barriers such as rivers or mountains. Most differences which can passed to offspring are due to genetic recombination that occurs during asexual reproduction.

Detailed explanation-2: -9. When birds cannot interbreed because they have different mating songs, they are characterized by isolation. 10. A situation in which allele frequencies change as a result of the migration of a small subgroup of a population is known as the .

Detailed explanation-3: -An example of this is the London Underground mosquito, a variant of the mosquito Culex pipiens, which entered in the London Undgerground in 19th century. Evidence for its speciation includes genetic divergence, behavioural differences, and difficulty in mating.

Detailed explanation-4: -temporal isolation, in biology, a type of reproductive isolation mechanism among sexual organisms in which the differences in the timing of critical reproductive events prevent members of closely related species, which could otherwise breed with one another, from mating and producing hybrid offspring.