The signs of protein deficiency include:
•hunger- protein is needed to promote signals of satiety(fullness) to the brain and stabilize blood sugar
•depression
•fatigue- lack in protein can lead to both muscle fatigue and brain fatigue
•hair loss- both collagen and keratin are the main components of hair and both of these products are made of amino acids from protein
•slow recovery from injuries- protein is needed to heal and rebuild cells
Voluntarily because you moved your bones to move your missiles and you have to think about it and make it happen. your heart is involuntarily moving because you don't make it beat or have to think for it to beat it beats on it's own
In boys, the first puberty change is enlargement of the scrorum and testes. At this point, the penis does not enlarge.
As the testes and scrotum continue to grow, the penis grows.
The first growth of pubic hair produces long, soft hair that is only in a small area around the genitals.
This hair becomes darker and courser as it continues to spread.
The pubic hair eventually looks like adult hair, but in a smaller area. It may spread towards the thighs and up to the stomach.
Body size will increase, Voice changes, and they start producing sperm.
