Biology MCQs

11. Which among the following nitrogenous wastes requires the least water for its excretion?
[A] Ammonia
[B] Urea
[C] Nitrites
[D] Uric Acid

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12. Which one of the following creatures has maximum number of ribs?
[A] Ray fish
[B] Flying mammal
[C] Snake
[D] Crocodile

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13. Guttation takes place due to the development of which of the following?
[A] Cells
[B] Transpiration
[C] Root pressure
[D] All of the above

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14. Which of the following can be checked by doctors with the help of Pulse reading? (UPSC Prelims 1979).
[A] Temperature
[B] Heart beat
[C] Blood pressure
[D] Respiration rate

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15. Which vitamin is also called as “Pantothenic acid”?
[A] Vitamin K
[B] Vitamin D
[C] Vitamin B3
[D] Vitamin B5

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16. Where is eustachian tube present in the human body?
[A] Heart
[B] Lungs
[C] Ear
[D] Small Intestine

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17. The branch of science that deals with the study of the mental faculties of the brain including emotions is known as__?
[A] Phenology
[B] Phycology
[C] Phrenology
[D] Proctology

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18. Which sugar is present in RNA?
[A] Hexose
[B] Ribose
[C] Fructose
[D] Glucose
Glucose

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19. What is involved in the release of pollen grains?
[A] Pectin and cellulose
[B] Lignocellulose
[C] Pollenkit
[D] Sporopollenin

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20. Vaucheria and Chara are examples of?
[A] Euglenophyta
[B] Coenocytic
[C] Rhodophyta
[D] None of these

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