From the context of the question, I am going to say placebo. This is me assuming, however, that both groups were told that their drinks had the protein powder
Answer:
protection and a mask
Explanation:
that virus is deadly and especially in a high risk groups, and it attacks lungs and nose and throat
What are the answer choices? I can help once I'm given the choices
Answer:
The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
Explanation:
