An acid because if its less than 5 its an acid
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.
<span>Enzymes, special kinds of proteins, move up the DNA, breaking the rungs</span>
Answer:
I think biosphere
Explanation:
Remind me what the real correct answer was if i got it wrong (But don't report it)