6. What unique feature of a mitochondrion accounts for the difference in aging muscles and an athlete's muscle?

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

and after water is usually warmed by the sun the water temperature raises and then evaporates .