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Question 1 of 46
1. Question
A film of moisture of appears on the surface of the mirror when we:
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Question 2 of 46
2. Question
The vital biological process of organisms is:
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Question 3 of 46
3. Question
The mountaineers carry oxygen with them because:
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Question 4 of 46
4. Question
We feel hungry after a physical activity because we need:
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Question 5 of 46
5. Question
A person can hold air in the lungs is:
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Question 6 of 46
6. Question
The percentage of oxygen in exhaled air is:
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Question 7 of 46
7. Question
The percentage of oxygen in inhaled air is:
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Question 8 of 46
8. Question
The percentage of CO2 in inhaled air is:
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Question 9 of 46
9. Question
The respiratory organs of human beings are:
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Question 10 of 46
10. Question
The process of respiration leads to the release of energy in:
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Question 11 of 46
11. Question
The absorb oxygen dissolved in water:
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Question 12 of 46
12. Question
The respiratory organ of birds are:
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Question 13 of 46
13. Question
Air exhaled:
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Question 14 of 46
14. Question
After exercise:
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Question 15 of 46
15. Question
Air enters the lungs when:
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Question 16 of 46
16. Question
Roots take up air from the air spaces present between the:
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Question 17 of 46
17. Question
If a potted plant is over watered, the roots will:
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Question 18 of 46
18. Question
The rate of exchange of gases in plants is not as fast as in:
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Question 19 of 46
19. Question
Insects have small openings on the outside of their bodies. These openings are called:
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Question 20 of 46
20. Question
Exchange of gases take place through small openings on the surface of the leaves are called:
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Question 21 of 46
21. Question
The process of intake of oxygen and exhalation of carbon dioxide is:
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Question 22 of 46
22. Question
Ribs move down and inward to decrease space in chess cavity during:
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Question 23 of 46
23. Question
In Cockroaches air enters the body through:
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Question 24 of 46
24. Question
During heavy exercise, we get cramps in legs due to accumulation of:
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Question 25 of 46
25. Question
Normal range of breathing rate per minute in an average adult person at rest is:
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Question 26 of 46
26. Question
During exhalation the ribs:
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Question 27 of 46
27. Question
During inhalation the ribs:
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Question 28 of 46
28. Question
In fish air enters the body through:
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Question 29 of 46
29. Question
Earthworm respires through
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Question 30 of 46
30. Question
The energy giving process is
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Question 31 of 46
31. Question
Which disease is linked to smoking ?
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Question 32 of 46
32. Question
The air tubes present in insects are:
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Question 33 of 46
33. Question
The reason of cramps in legs is:
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Question 34 of 46
34. Question
In mammals the respiratory organ is:
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Question 35 of 46
35. Question
Which one of the following is an anaerobic organism ?
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Question 36 of 46
36. Question
The percentage of carbon dioxide in exhaled air is:
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Question 37 of 46
37. Question
The size of chest cavity increases during:
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Question 38 of 46
38. Question
Frogs breathe through their skin as well as:
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Question 39 of 46
39. Question
The end products of anaerobic respiration are:
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Question 40 of 46
40. Question
The end products of an aerobic respiration are:
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Question 41 of 46
41. Question
These organisms survive in absence of air are known as:
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Question 42 of 46
42. Question
Respiration taking place in cells is:
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Question 43 of 46
43. Question
The muscles of legs can be relieved by:
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Question 44 of 46
44. Question
A large muscular sheet farming the floor of chest cavity is:
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Question 45 of 46
45. Question
The size of chest cavity decreases during:
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Question 46 of 46
46. Question
Which part of nose prevents the passage of smoke dust inside the body:
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