The answer will obviously be letter A
I believe its your heart if I am not mistaken hope this helps ^^;
Answer:
Assimilation
Explanation:
Plant roots absorb ammonium ions and nitrate ions in the process of assimilation to use these ions to make molecules like <em>DNA, amino acids, and proteins</em>.
Animals cannot absorb these ions directly; hence they need to consume these plants for the nutrient supplies.
Answer:
There's not enough information to answer this. You need to provide the information on the people.