Ribosomes are where protein synthesis occurs.
B.
Your body needs two key nutrients: calcium and vitamin D. Calcium is the mineral that strengthens bones and teeth, and vitamin D helps the body absorb calcium while improving bone growth. So stuff like <em>yogurt, milk, salmon, tuna, and spinach.</em>
The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
Answer:
This means that some cells are able to letter molecules pass through them and this makes it easier for the molecules to pass through.
Chromosomes. Hope this helps.
