<span>Organisms play an important role in the water cycle. As you know, most organisms contain a significant amount of water .</span>
The last option because it's like the earth
Yes, blood doping can improve your performance. Red blood cells contain lots of oxygen, thus, by filling your body with this oxygen-rich blood, you gain a lot more endurance and strength.
Answer: [B]: "proteins" .
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The answer is A. Chlorophyll
