Answer:
In the lungs breathing can be easier when not filling it with unnecessary toxins, the consequences of people at high altitudes slow asphyxiation if the altitude is high enough, headaches, hallucinations, blackouts and other symptoms if it's not as extreme.
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Answer:
Respiration is important because it converts food energy into chemical energy.
Explanation:
Answer:
C. pioneer species begin the process of succession
Explanation:
They are really different then most kinds<span />
