Biology MCQs

1. Excessive consumption of which substance may lead to the development of cirrhosis?
[A] Alcohol
[B] Tobacco
[C] Caffeine
[D] Carbonated soft drinks

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2. Which among the following are the building blocks of human body ?
[A] Muscles
[B] Cells
[C] Neurons
[D] Proteins

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3. Which of the following plant growth hormone was recognized by Japanese scientists?
[A] Auxin
[B] Gibberellins
[C] Abscisic acid
[D] Cytokinin

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4. What name has been given to the fear of crossing roads?
[A] Arthrophobia
[B] Atychiphobia
[C] Aichmophobia
[D] Agyrophobia

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5. Gargling with a solution of table salt is known to provide relief for a sore throat because ____ ?
[A] It kills bacteria
[B] It works as analgesic
[C] It dehydrates water from inflammatory tissues by Osmosis
[D] None of the above reasons

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6. Human body has how many vertebrae?
[A] 32
[B] 35
[C] 33
[D] 47

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7. Which of the following Vitamin is responsible for anti-sterile activities?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin E
[D] Vitamin D

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8. Which one of the following is useful for biological control of pests?
[A] Honey bees and locusts
[B] Scorpions and spiders
[C] Wasps and birds
[D] Parrots and kites

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9. In the branch of biology, what is the transmission of paternal traits to progeny called?
[A] Genetics
[B] Heredity
[C] Gerontology
[D] Genetic Engineering

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10. Exobiology refers to the study of which of the following?
[A] Organism
[B] Endodermis
[C] Life in the air
[D] Life on the other planets

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