Thyroid, Pancreas, Testes or Ovaries
Answer: They use enzymes.
Explanation:
Cells employ enzymes to drive and speed up their chemical reactions without being used up themselves. They are the only macromolecular biological catalysts that can start a reaction using the smallest available heat energy, thus overcoming the issue of needing high activation energy. Enzymes work by converting specific substrates to required product by binding them to their active site.
Answer: HI I think i can help You!
B is the correct answer
Explanation:
It would be B. change in color
From smallest to largest the levels of ecosystem organization are:
Organism
Population
Community
Ecosystem