Answer:
D.
Explanation:
I think its D. sorry if its wrong
Either B and D I believe I may be wrong..
I think it is A but not 100% sure. Think of an enzyme like a key unlock the lock is the protein. And to activate getting inside your car or house you have to fit the key into the lock.
Answer:
What does even EATLING mean.
Is it eating?
The structure that serves as the cell's boundaries from its environment is known as the CELL MEMBRANE. It keeps the bad things from coming in, and releases waste out into the environment.
<span>Answer: cell membrane</span>