In what ways can species be isolated from each other? 3 sentences.

1)Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.    

2)Speciation is the process by which new species form.

3) It occurs when groups in a species become reproductively isolated and diverge.

Explanation:

as many times as you want

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.