Cells with large numbers of mitochondria have a high energy demand
Yes biotic means living or once living. it was living at one point so yes its biotic
What alleles do the parents have? If the parents are both Homozygous recessive the answer is 0%. If one is homozygous dominant it doesn't matter what the other one is, the answer is 100%. if the are both heterozygous the answer is 75%