Radiometric dating method. Geologists commonly used radiometric age-dating to determine the numerical age of rock and fossils based on the natural radioactive decay of certain elements, including potassium and carbon.
Answer:
Energy is directly responsible for matter moving and changing inside a bears body.
Answer:
Variations are caused by mutation. random mating between organisms.
Explanation:
Type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
