Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Letter d is correct it us. transforming gene beaniest please add me to
Answer: A fatty acid in which the hydrocarbon molecules have a hydrogen atom every carbon and thus are fully hydrogenated. Byway of comparison the hydrocarbon molecules of unsaturated fats have two carbons that share double or triple bonds and are therefore not completely saturated with hydrogen atoms.
The Nucleus is sort of like the "brain" of a cell.
