Biology MCQs

31. Which of the following processes are associated with plants during dark period?
[A] Respiration and transpiration
[B] Transpiration and conduction
[C] Photosynthesis and respiration
[D] Conduction and respiration

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32. Mycobacterium leprae is a ____:
[A] Bacillus
[B] Spiral
[C] Coccus
[D] Spore

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33. Blood fails to clot white flowing in the blood vessel because of the presence of ____:
[A] Heparin
[B] Prothrombin
[C] Haemoglobin
[D] Hirudin

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34. Diaphragm is a means of contraception. It is fixed ____:
[A] Over cervix
[B] In the uterus
[C] In the fallopian tube
[D] None of the above

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35. Meibomian glands are located in ____:
[A] Eye
[B] Ear
[C] Nose
[D] Skin

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36. The biological decomposition of organic substances in wastes under controlled conditions known as
____:
[A] Incineration
[B] Pyrolysis
[C] Composting
[D] Sanitary landfill

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37. The radioactive Strontium-90 causes _____:
[A] Lung cancer
[B] Skin cancer
[C] Bone cancer
[D] Brain cancer

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38. Pinna (external ear) is present in
____:
[A] Amphibian
[B] Fish
[C] Mammal
[D] Reptile

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39. Total number of muscles present in our body is ____:
[A] 556
[B] 565
[C] 656
[D] 665

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40. In how many parts is the human brain divided?
[A] 2
[B] 3
[C] 4
[D] 5

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