Which organelles is responsible for converting energy from food into a form the cell can use?

i am positive it is c. condensing but i may be wrong

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

that scientist would be robert hooke

allowed for the prediction of the properties of missing elements.