ANT 205 Lecture 3: 2/8/16
Document Summary
Biological adaptation: beneficial phenotypic change in individuals of a population. Cultural adaptation: tendencies developed and adopted through an individual"s cultural surroundings. Adaptations are anatomical and fits between an organism and its environment. Only responded to songs and appearance of the same species. Beak depth passed from parent to offspring. Grants could determine who made offspring; see correlation between beak sizes. Selection operates on level of the individual. High fecundity favored even at species" expense. Monkeys could type all of shakespeare"s works if given the time. Complex features can develop if even small, random changes are retained over time. 5% of an eye is better than no eye. Living mollusks show steps in eye evolution. The phenom when two species individually develop the same trait, though they are unrelated to each other. Major environmental changes (e. g. , drought on daphne major finches) Selective breeding: individual animals or plants are chosen to mate based on traits desired in offspring.
