PSYC18H3 Chapter Notes - Chapter 2: Heredity, Ophanim, John Bowlby
Document Summary
Understanding emotions chapter 2 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Darwin described evolution in terms of three processes. Superabundance: animals and plants produce more offspring than are necessary merely to reproduce themselves. Variation: each offspring is somewhat different than others, and differences are passed on by heredity. Selection: those characteristics that allow better adaptation to the environment are selected because they enable survival, and hence are passed on. Selection pressure: for humans features of the physical and social environment in which humans evolved that determined whether individuals survived or reproduced. Many bodily systems developed and evolved in response to various selection pressures. Sexual selection pressures: determines who reproduces: intersexual competition: the process by which one sex selects specific kinds of traits in the other sex, intrasexual competition: competition for mates within a sex. Understanding emotions chapter 2 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1)
