Answer:
D?
Explanation:
yo use science to figure vaccines for viruses and medicines
The rate of cell growth is increasing,its takes about 20 hours to grow 10 ells ,but it only takes 2-3 hr to grow the last 20 cellsExtend your thinking: In living organisms, the cell cycle is closely regulated.
C. At a pH of 8, the enzyme starts to denature and changes shape.
