The effects of sex phero-mones produced by the apocrine sweat glands and otherskin glands are also important for this attraction.

Hormone which is responsible for development of secondary sexual characteristics in males isA Testosterone B Oestrogen C Thyroxine D Adrenaline

The promiscuity model suggests that female sexual characteristics such as enlarged breasts, sensitized skin, loss of estrus, continual receptivity, and female orgasm are a defense against male promiscuity.Group of answer choicesTrueFalse

Match the male and female organs with their common function. Covering and protection Secrete lubricant Stimulate sexual arousal

Exaggerated physical characters like antlers are not really signals used by males to attract mates.Group of answer choicesTrueFalse

Seasonal breeders, like many species of bird, experience a rush of hormones that induce sexual drive and fertility right around the start of the mating season. Which bodily systems are triggered during the mating season of birds? Select TWO correct answers.Select one or more:a.Lymphaticb.Reproductivec.Musculard.Endocrinee.Nervous