The process by which living things change over a period of time . A group of organisms that mate and produce fertile offspring. . A comparison of internal and external structures of organisms. . The collection of genes for all the traits in a population . Organisms with favorable variations survive and reproduce at a higher rate .
Many species appear to be related to a single ancestral species .
The percentage of a specific allele of a gene in the gene pool . Unrelated species becoming more and more similar in appearance . One way to determine the age of bones is the radiocarbon dating method. Your opposable thumb makes it possible to communicate. Speciation is a common occurance in nature.