Sort the different functions of the mouth and stomach. Mouth
Stomach
Proteins are broken down.
Food is squeezed.
Food is mixed with acid.
Carbohydrates are broken down.
Food is cut into pieces.
Food becomes moist

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint