I remember back in 10th grade I learned that birds that had beaks that were easier to break the seeds carried those traits to their babies and the whole area had that type of beak since it was necessary to break some seeds. So the beaks that were a disadvantage no longer existed and the beaks that became an advantage passed along to all the other birds.
Side note: if they all had the same beak they could all fight for the same type of seeds and probably have some sort of intense competition but idk if that’s necessary
I think the amount of ATP produced is best distinguishes glycolysis and the Krebs cycle from the electron transport chain.
DNA is something everyone has in them to see
Recessive. I don't know the topic of your question so I dont fully know. but if you are talking about dominant and receive then white would be a receive gene.