I think it is D but I'm not sure, however, 4 seems pretty right.
The answer is cell division
They use the directions found in DNA to make Proteins & Polypeptides.
⭐️Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. ... When the cell uses oxygen to break down sugar, oxygen is used, carbon dioxide is produced, and energy is released.⭐️
If this is for the scientific process unit, the answer is passing laws to prevent certain types of scientific research. I know because I had this question in biology.
