WRITE THE COMMON SECONDARY SEXUAL CHARECTERISTICS IN MALE AND FEMALE
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Secondary Sexual Characteristics
Secondary sexual characteristics are those sexually dimorphic characteristics that are not directly involved in reproduction. For males, secondary characteristics include facial and chest hair, increased body hair, pelvic build (lack of rounded hips), upper body muscular build, and the ability to generate muscle mass at a faster rate than the female. For females, secondary sex characteristics include relative lack of body hair, thicker hair on the head (in some cases), rounded hips/figure, a decreased ability to generate muscle mass at a fast rate, decreased upper body strength, breasts, ability to nurse children, a menstrual cycle, and increased body fat composition. There are, of course, exceptions to any efforts to use a list of features to classify people into the conventionally defined sex categories. For instance, not all women succeed in breast-feeding their infants, even if they otherwise fit the conventional definition of female.
Having defined biological sex in terms of chromosomes, genes, hormones, and organs, let’s begin dissecting the process of sexual differentiation.
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