Answer:
Immuizations can prevent certain diseases by helping your body fight the disease. It makes your body think it is being attack by a certain disease. Then your body creates a defense against it to fight the disease off.
Explanation:
Answer:vitamin Y and vitamin Z are the essential nutrients.
Explanation:
When the researcher treated the mouse cells in the absence of vitamin W and X, the cells survived but when he eventually removed vitamin Y and Z the cells died. This implies that for the cells to grow and survive Vitamin Y and Z which are the essential Vitamin needs to be present. Thanks alot. I hope it helps!
The answer is, "Chronic use of alcohol".
