Science, asked by vb9982650, 4 months ago

14. The taking in, and giving out of air is called external respiration or breathing.
Breathing consists of inhalation and exhalation. It continues throughout the life of an
individual.
(1x4=4)
a) What is the meaning of one 'breath”?
b) How does diaphragm help in breathing?

Answers

Answered by padharuharini1983

1

Explanation:

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