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What is Breathing?

Q. What is breathing? Ans. Breathing is an external process, in this process inhale of air and exhale of air. Or  Breathing (or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide.   Breathing is also known as external respiration. It is part of respiration but not internal or cellular respiration. The process of breathing does not fill the alveoli with atmospheric air during each inhalation (about 350 ml per breath), but the inhaled air is carefully diluted and thoroughly mixed with a large volume of gas (about 2.5 liters in adult humans) known as the functional residual capacity which remains in the lungs after each exhalation, and whose gaseous composition differs markedly from that of the ambient air . Physiological respiration involves the mechanisms that ensure that the composition of the fu
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Vegetative Reproduction, Vegetative Propagation or Vegetative Multiplication



Vegetative Reproduction

Ø  Vegetative reproduction (also known as Vegetative Propagation, vegetative multiplication or cloning).
Ø  It is a form of asexual reproduction, occurring in plants in which a new plant grows and form a fragment of the parent plant or a specialized reproductive structure.
Ø  Vegetative propagation is following two types on the basis of growing process:

1.    Natural Vegetative Propagation
2. Artificial Vegetative Propagation


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What is Respiration?

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