Biology Practice Question and Answer

Q:

The change of milk into curd is done by-

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  • 1
    Bacteria
    Correct
    Wrong
  • 2
    Vitamin
    Correct
    Wrong
  • 3
    Enzyme
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Bacteria"

Q:

Hypothermia occurs due to loss of excessive heat from body due to sudden low body temperature in:

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  • 1
    Lizards
    Correct
    Wrong
  • 2
    Snakes
    Correct
    Wrong
  • 3
    Frogs
    Correct
    Wrong
  • 4
    Human beings
    Correct
    Wrong
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Answer : 2. "Snakes "

Q:

Spinach leaves have the highest quantity?

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  • 1
    Vitamin
    Correct
    Wrong
  • 2
    Iron
    Correct
    Wrong
  • 3
    Carbohydrate
    Correct
    Wrong
  • 4
    Fat
    Correct
    Wrong
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Answer : 2. "Iron"

Q:

The branch of animal science under which genetic traits and its inheritance are studied is called

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  • 1
    Ecology
    Correct
    Wrong
  • 2
    Cytology
    Correct
    Wrong
  • 3
    Geology
    Correct
    Wrong
  • 4
    Genetics
    Correct
    Wrong
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Answer : 4. "Genetics"

Q:

Which of the following diseases is often spread through air?

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  • 1
    Typhoid
    Correct
    Wrong
  • 2
    Tuberculosis
    Correct
    Wrong
  • 3
    Cholera
    Correct
    Wrong
  • 4
    Plague
    Correct
    Wrong
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Answer : 4. "Plague"

Q:

Which of the following protects the inner lining of the stomach from the action of the hydrochloric acid under the normal conditions?

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  • 1
    Villi
    Correct
    Wrong
  • 2
    Mucus
    Correct
    Wrong
  • 3
    Saliva
    Correct
    Wrong
  • 4
    Digestive Juices
    Correct
    Wrong
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Answer : 2. "Mucus"

Q:

What causes the dough to rise on the addition of yeast?

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  • 1
    increase in the number of yeast cells
    Correct
    Wrong
  • 2
    release of carbon dioxide gas
    Correct
    Wrong
  • 3
    rise in temperature
    Correct
    Wrong
  • 4
    increase in the quantity of matter
    Correct
    Wrong
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Answer : 2. "release of carbon dioxide gas"

Q:

The pH of human blood is

804 0

  • 1
    7.5
    Correct
    Wrong
  • 2
    7.4
    Correct
    Wrong
  • 3
    8.1
    Correct
    Wrong
  • 4
    8.4
    Correct
    Wrong
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Answer : 2. "7.4"

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