What is exhalation?
A. Exhalation refers to the exchange of gases in the bloodstream.
B. Inhalation is the act of breathing in.
C. Exhalation is the process of digesting food.
D. Exhalation is the act of breathing out.
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Why is respiration important for living organisms?
A. Respiration is only necessary for plants.
B. Respiration helps in the growth of non-living things.
C. Respiration is a process that occurs only during sleep.
D. Respiration provides energy for cellular processes essential for life.
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