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Residual Volume - Respiration
No matter how hard one may try, the lungs are never empty of air; there is still 1650 cm3 of air left in it. This is known as residual volume. During inhalation, 350 (500-150) cm3 of fresh air enters and this mixes with the 1650 cm3 of air already in the lungs. The renewal of air is only one part in five. Therefore, the lungs have a constant composition of 15% oxygen and 5% carbon dioxide. This remains same even during exercise as increased ventilation during exercise supplies the extra oxygen requirements of the body.
Foliose Lichen Stage - Xerarch As mentioned earlier, the weathering of the rocks and the decaying of the crustose lichens results in the formation of soil on the otherwise bar
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How does the presence of thick, cloudy, yellowish fluid in the peritoneal cavity differ from the normal state?
How we explain intenal organs when we talk about symmetry??Is there any animal that is completely symmetric even insid the body?
life cycle of stentor
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Compare and contrast the effect of a deletion in the operator of the lactose operon with one in the operator of the histidine operon.
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