When you inhale oxygen comes in then goes though trachea then lungs and into aveoli Then the blood carry oxygen to our body cells to remove carbon dioxide
Answer:
variation,inheritance,high rate of populations growth,differential survival and reproduction
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Answer:
C and D have the same answer?? wdym
Explanation:
Solar energy provides the reducing power within green leaves to convert CO2 and H2O into sugars. ... During illumination, leaf cells have both a source (respiration) and sink (photosynthesis) for CO2. Respiration in some species appears to be greatly stimulated by light.