MCQ
Chlorophyll-a occurs in.
- AAll photosynthetic autotrophs.
- BIn all higher plants.
- CAll oxygen liberating autotrophs.
- DAll plants except fungi.
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$I.$ Relaxation of the diaphragm and sternum
$II.$ Reduction of the pulmonary volume
$III.$ Expulsion of air from the lungs
$IV.$ Increase in intra pulmonary pressure
Choose the correct option