When there is a change in the relative frequency of alleles in a population.
DNA is the molecule that supplies the genetic code for the cell
It wouldn't be able to make sugar to survive, and photosynthesis wouldn't be able to happen at all. Hope this helps!
Answer:
During courtship, males serenade prospective mates by throwing their heads back, pointing their beaks to the sky, and emitting a series of hoarse trills and squawks.
Explanation:
