Natural selection can be defined as__. the evolution of a population of organisms a process in which changes in gene frequencies result from evolution the production of more offspring than can survive in a given environment a process in which organisms with certain inherited traits are more likely to survive and reproduce than individuals with other traits What did Darwin find in South America that suggested that the Andes mountains had been gradually lifted up over millions of years? bird fossils at the top of mountains in Argentina dinosaur bones in the Amazon basin marine snail fossils high up in the Andes mountains impressions of ocean waves at the top of a mountain Which of the following is a component of the fossil record? the distribution of murid rodents in Australia and Asia the similarity of the forelimbs of cats and bats molecular sequences bones of extinct whales The oldest known fossils are from about years ago. 3.5 billion 6,000 4.0 million 1.0 billion Homology is evidence of__. biogeography convergent evolution natural selection common ancestry Which of the following is a population? the termites infesting your house along with the microorganisms living in their guts all of the termites that have ever lived all organisms living in your house the termites infesting your house