Some mutations always occur from generation to generation but most mutations to not persisting overtime in the gene pool which mutation is most likely to become established and persist in a species

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Reactants undergo chemical reaction to form products. this chemical equation represents one such reaction. the coefficient for one of the reactants or products is incorrect. which part of the chemical equation is incorrect?

Which measure of an earthquake depends on how close you are to the focus?