BIOL 1202 : Biol 1202 Exam 1
Document Summary
Descent with modification: a darwinian view of life. Evolution by natural selection: darwin and wallace developed the theory independently, darwin-voyage of the beagle, wallace-naturalist in indonesia. The unequal survival and reproduction of organisms due to environmental forces, resulting in the preservation of favorable adaptations. Process selects from what is available in the gene pool. New characteristics are not created on demand. Organisms that are not well adapted leave fewer offspring. Individuals in a population vary in their heritable characteristics. Organisms produce more offspring than the environment can support. Individuals that are well suited to their environment tend to leave more offspring than other individuals. And over time, favorable traits accumulate in the population. Selective breeding of organisms to encourage the occurrence of desirable traits. Homologous: o structures or other attributes in different species that resemble each other because of common ancestry. Structures that are similar in function but not in structure and developmental and evolutionary origin.
