The good genes hypothesis supposes that the female chooses the flashier male because his ornamentation may represent increased disease resistance or other fitness benefits that may be passed to her offspring. In some males, hair also grows on the chest, but generally, Asian men are less hairy and less muscular than Caucasian men, and those from Africa have coarser body hair. The videos on Study. List some of the secondary sex characteristics in humans Describe the differences in secondary sex characteristics in other animals. Life Span Developmental Psychology Progesterone is produced by the corpus luteum.
When Reid is not training to run marathons, she is operating a non-profit animal rescue organization.
Primary & Secondary Sexual Characteristics
Two folds of skin, surround vaginal area. The tubes terminate near the ovaries but are not attached. Organ in which the male inserts his penis during intercourse. Email already in use. Pituitary gland at the base of the brain produces: Very muscular, stretches to allow a baby to grow.