Answer:
Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
Answer:
It is called a Radiation Threat
Explanation:
I know this because it talked about this in My social studies class
if a person has a lifestyle where they eat mcdonalds everyday or they only eat fastfood they are more likely to get diabetes, heart disease, or cancer because fastfood like that isnt really food and i would tell you what its made out of to make more of a point but i'll spare you the gory details (*cough* tho i must say velveta has no dairy in it what so ever:) sorry)
You have to have a goal before you work out or should so d would be the answer
A,B,C I have no clue of that’s right just taking a guess