The answer to the question is B - The lungs exhale carbon dioxide, which is a waste gas and needs to be removed from the body.
Answer:
Cell membrane
Explanation:
Cell membrane controls what goes in and out of cells
Water and carbon dioxide are byproducts. Notice that photosynthesis and respiration are essentially the opposite of one another. Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
6H2O = six molecules of water. As we learned earlier, the glucose will be used by the plant as energy. The oxygen and water will be released back into the atmosphere to help other living things.
