Recent questions in Biology

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Observe the presence of tar by rubbing white tissue paper on the inner surface of the funnel.

asked Sep 4, 2017 in Biology by shamroz (41.5k points)

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Demonstration of the presence of tar in cigarette smoke and also showing

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An animal is placed in an apparatus where it re-breathes the same air continuously. Its breathing rate increases. Why?

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The amount of carbon dioxide is higher in exhaled air as compared to atmospheric air. Why?

asked Sep 3, 2017 in Biology by shamroz (41.5k points)

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Which of the flask is acting as a control? Justify.

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Which compound is formed when limewater combines with carbon dioxide?

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The result you have noted is only because of the carbon dioxide

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Demonstration of the presence of carbon dioxide in the exhaled air.

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In the lungs, the oxygen passes from the alveoli to the blood. What features make this process rapid?

asked Aug 31, 2017 in Biology by shamroz (41.5k points)

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In the lungs, the oxygen passes from the alveoli to the blood. What features make this process rapid?

asked Aug 31, 2017 in Biology by shamroz (41.5k points)

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Does tidal volume increase when workload is increased?

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What are the factors that can affect the tidal volume and total lung capacity?

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How does living at high altitudes influence tidal volume?

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Experiment to find out how much air a person can take into his/her lungs.

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After vigorous exercise, your muscles, get fatigued, how it happens?

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The breathing becomes rapid and deep after exercise. Why?

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Write an account on bad effects of smoking.

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Write an account on lung cancer.

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Write an account on pneumonia and asthma.

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Write an account on emphysema.

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