In the photosynthesis experiments using different colored lights, why were the experimental volume changes subtracted from the controls to provide the photosynthetic rate?

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

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.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

c. heat from the poles back down towards the equator.