ANTA01H3 Lecture Notes - Bowerbird, Bighorn Sheep, Porphyria
Document Summary
Descent with modification (darwin, 1859) change between generations, through time. A change in genetic structure of a population from one generation to the next. (lewis et al. , p. Adaption: a feature of an organism that increases the likelihood of its survival and reproduction in a particular environment. Adaptive radiation: the evolution of multiple divergent species from a single less specialized ancestral species. Niche: the role of a species in its environment, everything it does, interacts with. Basic tenets of natural selection: variation exists not everybody is the same, that variation is heritable tall people tend to have tall babies. Selection on features or behaviours associated with mating. Generally takes two forms: male-male competition: bighorn sheep head butting for a mate, female choice: female bower bird inspecting a bower. Sperm is cheap: females are the selective factor. Humans use variables to choose mating partner like: religion. Exhibits a feature called the hapsburg jaw. Had difficulty choosing his food, and mentally retarded.
