PSYC 3420 Lecture Notes - Lecture 7: Gamete, Prefrontal Cortex, Follicular Phase
8 Dec 2016
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Document Summary
Female egg cells are about 2000x bigger, they are more expensive to produce and require more energy than the sperm does. Contribution is higher at contraception for women. 2-5 ml semen/ejaculation each ml there are 100 million sperm therefore less expensive to produce for men. Women have around 400 eggs at birth. Number of offspring that can be produced by an individual, higher in males. 670 calories into breastfeeding, some parts breast feeding happens for about 30 months. Minimum parental investment is 40 months (3. 5 years) Around 16-18 is the beginning age of when you can get pregnant, after 30 fertility declines and then around 50 menopause occurs. (cid:862)rep(cid:396)oducti(cid:448)e ca(cid:396)ee(cid:396)(cid:863) is the time length of when child baring is likely, women are 32. 5 years and men are 53 years. Highest amount of child by women is around 22, and men is over 1000.
