The answer is C; hundreds of years
b) Stem cell therapy involves shutting down the immune system.
Hope I helped! ( Smiles )
The levels of biological organization from individual to biosphere are, subatomic particles,Atoms,Small Molecules,Macromolecules,Moleculer assemblies organelle cell tissue organ organ system organsim population species community ecosystem and Biosphere
Answer is 14 grams (1/2 ounce) of pure alcohol.
Reason: In the United States, one "standard" drink contains about 14 grams of pure alcohol, ( about 1/2 ounce) which is found in: 12 ounces of regular beer, which is usually about 5% alcohol. 4 ounces of wine, which is typically about 12% alcohol. 1 ounce of distilled spirits, which is about 40% alcohol.