TROPOSPHERE is the anwser
3) antibodies against the flu virus
Answer: Option C.
Explanation:
The bird's lung are said as more efficient than a human or mammals.
The bird's are having small lungs with nine air sacs playing an important role in respiration.The air sacs allows a unidirectional flow of air inside the lungs while in human the air flow takes place in bidirectional. Unidirectional flow results in the flow of fresh air along with high oxygen content in bird's lung. So, there is more oxygen available to diffuse into the blood in bird lungs.
Hence, the correct option is C.
Answer:
Metabolism
Explanation:
Metabolism is a chemical process occurring within a living organism in order to maintain life.
Drug metabolism involves the breakdown of drugs by specialized enzymatic system. This metabolism is important in pharmacokinetics since it determines the duration and intensity of a drug.
In humans, it takes place in the liver and enzyme cytochrome P-450 (CYP450) helps in the breakdown of the drugs.
There for immature liver and low levels of this enzyme will affect the aspect of metabolism