By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
Most of these I would advise you not to handle food with, but the most seriousness of these diseases is Typhoid Fever. Typhoid Fever is obtained by food an infectious person handles. The answer is C.
Answer:
the constituents in food that the body requires to function properly.
Explanation:
Nutrients are the constituent of which a food is made up of and are required by the body to function properly. They provide energy to our body to perform the necessary and essential metabolic activities.
They help in body growth and tissue repair. There are six major nutrients that we get from our food. These nutrients are- carbohydrate, fat, protein, vitamin, mineral, and water.
Nutrient is required by every organism to survive. Some nutrients are required in large amounts called macronutrients and some in the small amounts called micronutrients.