Answer:
Enzymes
Explanation:
Enzymes are proteins that act as biological catalysts, which speed up chemical reactions, to help support life. These enzymes help to perform important tasks such as breaking foods down into energy that the body can use.
Hope this helps :)
This varieation can be justified because since they had different variations they probably had different niches which led them to evolve differently,this will help because the two species will have no competition
