Many classroom protocols for extracting dna from cheek cells instruct students to swish a sports drink in their mouths as they scrape the inside of the cheek. why would it be better to use a sports drink instead of water

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.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added