PSYA01H3 Chapter 3: Psychology - Chapter 3 (Evolution, Heredity and Behaviour)
Document Summary
artificial selection (particular animals deliberately mate to produce offspring with desirable characteristics) Variation: differences found across individuals of same species based on genetic, biological (size, strength, physiology) and psychological (intelligence, sociability behaviour) traits found in both phenotype (physical characteristic) and genotype (genetics) Competition: fighting with others who share the same ecological niche for food, resources, mates & territory. monogamy: mating of 1 female and 1 male (shared but not always, equal, parental investment) polygyny: mating of 1 male and >1 female (high females and low male parental investment) polyandry: mating of 1 female and >1 male (high male and low parental investment) parental investment: resources, including time, physical effort and risks to life that a parent spends in procreation and in the feeding, nurturing and protecting of offspring. Kin selection: type of selection that favours altruistic acts for people who share some of altruist"s genes (parents, siblings, grandparents, grandchildren and sometimes distant relatives)
