Flashcards in Chapter 13 Deck (16)
Infancy 2 months-3 years
Postweaning 3-7 yrs
Juvenile: girls 7-10/ boys 7-12
Puberty at the end of juvenile years
Adolescence 5-10 years after puberty
Women: 20-50 years
Men: 20-70 years
Around age 50
The end of menstruation in women
Decline physiological functioning usually associated with aging
Genes that have more than one effect
Genes that have different effects at different times in the life cycle
Life history theory
Seeks to understand the impact of natural selection on life cycles
The adolescent stage is present in ?
A long period of female post reproductive time is found in ?
Females first menstruation
Approximately how long do chimpanzees, gorillas, and women in foraging societies nurse their infants?
3 -4 years
What does the grandmother hypothesis propose to explain?
The existence of menopause
Proposes to explain senescence that cells that dive throughout the life course have shortened DNA sequences at the end of the chromosomes
The age of onset of menarche is affected by ?
At birth the human brain is approximately what percent of its adult size?