The primary physical differences between a boy and a girl encompass variations in body composition, hormonal levels, and certain physiological functions.
Key Physical Differences
Here's a breakdown of the key distinctions:
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Body Composition: Females generally have a higher body fat percentage compared to males, while males typically possess more muscle tissue mass.
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Hormones: Males and females have different levels of certain hormones. These hormonal differences drive many of the secondary sexual characteristics that distinguish the sexes.
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Cardiovascular Function: Females usually exhibit lower blood pressure than males. Also, female's hearts beat faster, even when they are asleep.
We can summarize these differences in the table below:
| Feature | Male | Female |
|---|---|---|
| Body Fat Percentage | Generally lower | Generally higher |
| Muscle Tissue Mass | Generally higher | Generally lower |
| Blood Pressure | Generally higher | Generally lower |
| Heart Rate | Generally slower | Generally faster |
| Hormones | Higher levels of testosterone | Higher levels of estrogen and progesterone |
In addition to these differences, there are other important physical differences, like differences in reproductive organs. However, the prompt question can be answered with the reference details.
