PSYC 333 Chapter Notes - Chapter 2: Erogenous Zone, Penis Envy, Red Queen Hypothesis

• School: Queen's University
• Department: Psychology
• Course: PSYC 333
• Professor: Kelly Suchinsky

Document Summary

Pg 23-44, 21 pages page 1 of 7. This automatic or reflexive response to a range of sexual stimuli may help protect against injury during unwilling intercourse: sexual selection is selection that results from differences in traits affecting mate access. The function of sex is not limited to reproduction: hip-to-waist ratio of 0. 7 supposedly the universal standard for reproductive fitness calculated from miss. American contests is not evolutionarily supported; there was decline from 0. 78 in 1921 to 0. 64 in 1986, and this range of ratio most common only in societies where women are economically dependent on men. Mutations cannot be removed in asexual reproduction with repeated. Host species constantly fighting against parasites, so having two. The two combined determine the best mating strategy. Exploitative, competitive, increase number of partners to increase reproductive output. Nurturing, choosy, increase partner quality to make sure few offspring are viable and successful. Mixed mating strategy: acquiring genes and resources from 2 different mates (cuckoldry)