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Respiratory System — BIOLOGY STD 9 — Question

ICSE BoardEnglish MediumSTD 9BIOLOGYRespiratory System2 Marks
Question
What is the internal respiration?
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Answer

Internal respiration: It is the transport of oxygen in the blood from the lungs to the cells and the transport of carbon dioxide from the tissue cells into the blood and to the lungs.

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