It prepares to fight danger or run from it. It identifies the primary source of danger.
D. DNA
All organisms contain dna
Answer:
parathyroid hormone (PTH), which is produced by the parathyroid glands. I hope it helps
Explanation:
<span>The function of a cell wall has the same
function of the cell membrane; it protects the cell. Cell wall is made up of cellulose
that is only present in plant cells. Cellulose is a sugar that has a sheet like
structural carbohydrate. It is rigid that is used for support and provides protection
to the plant cell from damage. They cannot be dissolved in water. An example is
if you eat food that contains mostly of leaves. You will observe that you will
eliminate the same material as when you it. That is because our human body does
not have the enzyme that dissolves the cellulose.</span>
