Which gender is an increase in the body fat a secondary sex characteristic of?
Females usually experience an increase in body fat during puberty as a secondary sex characteristic.
The primary male sexual characteristic is the ability to produce sperm (ejaculate), all other visible changes are secondary male sexual charcteristics. Things such as ... pubic hair growth, armpit hair, chest and body hair, facial hair, deepening of voice, growing taller and increase in muscles etc.
Which is considered not a secondary sex characteristic. A penis pubic hair Adams apple or facial hair?
It depends on the context. Gender is often used interchangeably with the word sex to refer to what physical sexual characteristics and body parts you have. In transsexual and transgender circles, the word sex refers to the body, and the word gender refers to your nature and who you are. A new understanding in such communities splits this usage of gender into gender identity and gender role. So gender identity refers to who you are…
The force of gravity is greatest between two masses whose product is greatest, and which are closest together. You're already as close to the earth's total mass as you can get, and there's nothing you can do to change the earth's mass. So the only way to increase the mutual force of gravity between the earth and another body is to increase the mass of the secondary body. In fewer words: Eat more. Get heavier.
I'm assuming you mean Basal Metabolic Rate (BMR). Most conventional formulas to estimate BMR use your current weight, height, and age. With that, current weight and height increase your BMR while age decreases it. Other factors include lean body mass (increase) and gender (males typically have a higher BMR).
How do hormones control the activities of male reproductive organs and the development of male secondary sex characteristics?
The arrival of puberty is when the body starts changing and producing the secondary sexual characteristics. This in turn is kick-started by an increase in hormone production controlled by the pituitary gland at the base of the brain. It is these androgen hormones that control the maturation of the body. Testosterone increases muscle growth, maturation of the sexual organs and production of sperm.
Secondary sexual characteristics are those that arrive with puberty. They include the following: Males increased body hair growth increased muscle mass facial hair widening of the shoulders lengthening of the limbs ejaculation increase in penis size deepening of the voice Females breast growth widening of the pelvis menstruation softening of the skin