Recent questions without a selected answer

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1 answer 258 views

What do you observe about the position of the heart in normal and smoker's chest cavity?

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

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1 answer 78 views

Compare non-smokers' lungs with those of smokers and note your observations.

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

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1 answer 271 views

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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1 answer 336 views

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

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

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1 answer 104 views

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

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

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1 answer 281 views

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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1 answer 73 views

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

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

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1 answer 229 views

Which compound is formed when limewater combines with carbon dioxide?

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

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1 answer 85 views

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

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

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1 answer 374 views

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

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

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1 answer 142 views

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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0 answers 122 views

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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1 answer 133 views

Does tidal volume increase when workload is increased?

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

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1 answer 1.2k views

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

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

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1 answer 255 views

How does living at high altitudes influence tidal volume?

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

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1 answer 290 views

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

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

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1 answer 47 views

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

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

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1 answer 78 views

The breathing becomes rapid and deep after exercise. Why?

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

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1 answer 87 views

Write an account on bad effects of smoking.

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

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1 answer 56 views

Write an account on lung cancer.

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

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