Brian was reading a book in his hand when he heard a plane flyying overhead How would brseves adjust to allow him to focus on the plane?
iv) Name the process explained in iii)

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.

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a

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potentially fatal issues such as heart attacks and strokes

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