the skin covering the human body consists of 2 layers.
The surface area of a sphere can be approximated as follows: Surface area = 4πr2; where r is the radius of the sphere; π is a constant that is roughly equal to 3.
Answer:
Explanation:
-Sodium-potassium pump (exchange of sodium and potassium ions across cell walls)
-Amino acids moving along the human intestinal tract.
-Calcium ions moving from cardiac muscle cells.
-Glucose moving in or out of a cell.
-A macrophage ingesting a bacterial cell.
Fish because it is full of healthy oils. But depends on the kind of fish. I know salmon is rich in omega 3 fa