Cells of all organisms have various mechanisms to control their metabolism. Some animals go into hibernation in response to changing environmental conditions. Their metabolism slows down to decrease their need for food. Which statement best explains this ability to change metabolism?
A. Animals that hibernate have genes that code for hibernation.
B. Phenotypes control the hibernation genotype, determining metabolism regulation.
C. Genes that regulate metabolism are multi-factorial and adjust to environmental changes.
D. Genes that regulate metabolism can mutate to adjust to temperature and lack of food.