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Biology & Life Sciences Quiz

Biology & Life Sciences · Expert

20 questions · Unlimited attempts · Free online practice

Life on Earth exists in an extraordinary variety of forms, from microscopic cells to towering trees and complex animal species. Biology helps us understand how living organisms gro...

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All 20 questions in this Biology & Life Sciences quiz
  1. What is the process of plants losing water through leaves?

    • A. Photosynthesis
    • B. Respiration
    • C. Osmosis
    • D. Transpiration
  2. Which bird cannot fly?

    • A. Eagle
    • B. Penguin
    • C. Sparrow
    • D. Parrot
  3. Which organ produces bile?

    • A. Gallbladder
    • B. Pancreas
    • C. Stomach
    • D. Liver
  4. Which scientist proposed evolution?

    • A. Einstein
    • B. Galileo
    • C. Darwin
    • D. Newton
  5. Which cells in the body fight infection?

    • A. Platelets
    • B. Nerve cells
    • C. Red cells
    • D. White cells
  6. Which animal is a mammal that lays eggs?

    • A. Opossum
    • B. Kangaroo
    • C. Koala
    • D. Platypus
  7. Which vitamin helps in blood clotting?

    • A. A
    • B. B
    • C. K
    • D. D
  8. What do tendons connect?

    • A. Muscle to muscle
    • B. Bone to bone
    • C. Nerve to bone
    • D. Muscle to bone
  9. Which gas do plants absorb from the atmosphere?

    • A. Nitrogen
    • B. Oxygen
    • C. Hydrogen
    • D. Carbon Dioxide
  10. Which part of the brain controls balance and coordination?

    • A. Cerebrum
    • B. Brainstem
    • C. Cerebellum
    • D. Thalamus
  11. Which vitamin is essential for blood clotting?

    • A. Vitamin C
    • B. Vitamin E
    • C. Vitamin A
    • D. Vitamin K
  12. How many bones are in the adult human body?

    • A. 186
    • B. 246
    • C. 206
    • D. 226
  13. How many valves in the heart?

    • A. 2
    • B. 3
    • C. 4
    • D. 5
  14. Which bird is a symbol of peace?

    • A. Owl
    • B. Parrot
    • C. Eagle
    • D. Dove
  15. Which animal never drinks water in its entire life?

    • A. Elephant
    • B. Camel
    • C. Kangaroo Rat
    • D. Snake
  16. Which blood cells fight infection?

    • A. Plasma
    • B. WBC
    • C. Platelets
    • D. RBC
  17. Which part of the cell is known as the 'protein factory'?

    • A. Vacuole
    • B. Ribosome
    • C. Mitochondria
    • D. Nucleus
  18. What is the medical term for the 'windpipe'?

    • A. Larynx
    • B. Esophagus
    • C. Trachea
    • D. Bronchus
  19. What is the largest bird in the world?

    • A. Ostrich
    • B. Eagle
    • C. Emu
    • D. Albatross
  20. What is the largest animal in the world?

    • A. Giraffe
    • B. Elephant
    • C. Blue Whale
    • D. Shark