It is the voice is used to evaluate the writers tone
Answer:
i believe the answer is b
Explanation:
The answer is 2.
Enzymes work to speed up chemical reactions by changing what goes into the reactions (substrates) into different molecules. To do so, these enzymes bind with the substrates, making the physical form very important. The lock and key method explains that enzymes and their corresponding substrates are shaped very specifically to be able to fit into one another to undergo this change.
The correct answer would be him.
hope this helps! :D
