This points to a long period of time since all living things shared common acestory. Similarity of biochemistry is explained by descent from common ancestor. Amino acid sequences of cytochrome c show similarity between human and monkey, distance from human to duck and greater distance to Candida yeast. Data are understandable assuming humans and chimpanzees share a more recent common ancestor than do humans and lemurs, ducks, or yeast. Process of Evolution Evolution is a great unifying Theory of biology.
Science is resticted by definition to utilizing natural laws to explain nature.
Examples of scientific theories are atomic theory, gravitational theory, plate tectonic theory. Detect Evolution a. Population defined as all members of a single species occupying an area at same time. In sexually reproducing populations, gene pool represents all the various allele frequencies of various genes in all members. Hardy-Weinberg Concept a. Allele frequencies in a sexually reproducing population come to an equilibrium that is maintained each generation, as long as certain conditions are met. Reproduction alone does not alter allele frequencies over time.