wait u go to the school i go to...but u must be in the high school cause my grade dont do biology unless your in 8th
Explanation:
Gas exchange in humans is the delivery of oxygen lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs.
It would be D because would be small and you wouldn't feel it. For answer A, the scientist could feel it. For answer B, you can kind of feel it or feel it. For C, It can definitely feel it. So the answer would be d.
3. C6H12O6
4. Organic compounds are compounds made up of carbon that are typically linked to hydrogen (H), oxygen (O) and/or nitrogen (N). Glucose has C, H and O which makes it (and any other carbohydrate) organic.
5. Sugar (glucose) is in a lot of foods - bread, rice, pasta, potatoes....
6. On the label it will have the number of calories in the food (per serving!) - this is how much energy there is in that amount of the product.