<span>In cells, enzymes are proteins that are needed to lower the amount of energy required to start chemical.</span>
Enzymes are biological catalysts which accelerate chemical reactions (reactions are millions of times faster than without them). Every enzyme has an active site which binds substrates and converts them into products.
Negative feedback, because sweating can decrease body temperature.
Answer:
The answer is A. Human activities have a greater impact on terrestrial and freshwater ecosystems.
Explanation:
During mitosis a cell divides itself creating an identical twin cell
B- roots and steams that can store a lot of water
