BIOL 1202 : Exam 1 Study Guide
Document Summary
Chapter 22: descent with modification: a darwinian view of life. Concept 22. 2: descent with modification by natural selection explains the adaptations of organisms and the unity and diversity of life: explain the mechanism for evolutionary change proposed by darwin in on the. Origin of species: the mechanism for evolutionary change proposed by charles darwin was. Darwin perceived unity in life, with all organisms related through descent from some unknown ancestor in the remote past. Observation 2 -> traits are inherited from parents to offspring. Observation 3 -> all species are capable of producing more offspring than their environments can support. Inference 1 -> individuals whose inherited traits give them a higher probability of surviving and reproducing in a given environment leave more offspring than other individuals. Populations, not individual organisms, evolve: natural selection occurs through interactions between individual organisms and their environments. There is little evidence that acquired traits can be inherited by their offspring.
