Answer:
The correct answer is D! Hope this helps!
Hydrochloric Acid (HCl) is produced by the stomach and has the job of breaking down proteins. If you make plenty of HCl, then the body can adequately digest protein. If not, protein digestion is compromised.
Electron shell is the outer orbital, while the inner orbital are just called orbitals.
The BRAIN. All of the senses send message to the Brain
