The science of genetics has demonstrated repeatedly: 1. that variation is the result of speciation

or

2. that variation among species is not the result of evolution

Explanation:

1.Variation is the result of speciation as species have evolved over time to adapt to enviromental changes

answer; atp and nadph;

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.