The answer is B <span>Endocrine system </span>
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➷ It would be D. 25 degrees. This is because there was the highest oxygen flow at this temperature meaning that the rate of photosynthesis was higher.
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Hemoglobin is contained in red blood cells,which efficiently carries oxygen from the lungs to the tissues of the body. It also helps in the transportation of carbon dioxide and hydrogen ions back to the lungs.
It gives you a sign that digestion is having a hard time taking place.
