Answer:
Vitamins and minerals helps in the obtaining energy from the foods that we eat. The vitamins and the minerals in the body acts as co-factors which helps in the various metabolic reactions that takes place in the body.
The co-factors helps in the reaction as without co factors chemical reactions cannot takes place in the body.
The food that we eat is broken down inside the body and energy from the food reaches to the cell for their different functions.
You do it before a lab so as to prevent contamination of the materials. You might have things on your hands that might contaminate the experiment and the research. You do it after because you don't want to have things from your experiments on your hands because that can be extremely dangerous.
The answer is external factors
Answer:
A.
Buying in single-serving sizes, would mean less packaging, which means less products used, less nature is destroyed for the making of the resources, and the better for the environment.
