Answer:
(d) the atoms it contains and the way these atoms are connected
Explanation:
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Cellular respiration can be thought of as the opposite of photosynthesis. In cellular respiration oxygen is turned into carbon dioxide while in photosynthesis carbon dioxide is tuned to oxygen.
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Heat is needed to change solid to liquid even to gas!
The answer is a. hemoglobin is the molecule that transports oxygen in red blood cells :))))
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