Biology MCQs

31. What is the speed of nerve impulses?
[A] 60 m/s
[B] 0.5 – 130 m/s
[C] 10-30 m/s
[D] 50 -150 m/s

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32. What are the shape of the malleus and aural bone marrow?
[A] Oval shaped
[B] Hammer shaped
[C] Horseshoe-shaped
[D] None of the above

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33. How does food move through your digestive tract?
[A] By gravity
[B] By wavelike muscle contractions
[C] By cilia
[D] By chemical absorption

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34. Which hormone regulates adrenocorticotropin release in the pituitary gland?
[A] Thyrotropin releasing hormone
[B] Corticotropin releasing hormone
[C] Gonadotropin releasing hormone
[D] Thyroid-stimulating hormone

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35. Which organ is affected by Japanese encephalitis?
[A] brain and spinal cord
[B] lungs
[C] liver and pancreas
[D] heart

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36. Which of the following ringworm is also called Tinea barbae?
[A] Ringworm of Scalp
[B] Ringworm of Beard
[C] Ringworm of Body
[D] Ringworm of Groin

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37. The root nodules for nitrogen fixation of a non-legume tree are?
[A] Frankia
[B] Rhizobium
[C] Azotobacter
[D] Thiobacillus

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38. Which of the following is a mobile genetic element?
[A] virus
[B] bacteria
[C] Transposons
[D] insertion sequence

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39. What is Alzheimer’s disease?
[A] It affects liver
[B] It is a disorder of the brain
[C] It affects kidney
[D] It affects human immune system

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40. Which one of the following is commonly known as Pond Silk?
[A] Yeast
[B] Rhizopus
[C] Ulothrix
[D] Spirogyra

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