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Biology & Life Sciences Quiz

Biology & Life Sciences · Earth Science Quiz

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. Which organ is known as the 'graveyard of RBCs'?

    • A. Kidney
    • B. Spleen
    • C. Liver
    • D. Heart
  2. Which bird cannot fly?

    • A. Eagle
    • B. Penguin
    • C. Sparrow
    • D. Parrot
  3. Which gas do trees release during photosynthesis?

    • A. Nitrogen
    • B. Oxygen
    • C. Methane
    • D. Carbon dioxide
  4. Which organ controls brain?

    • A. Heart
    • B. Nerves
    • C. Head
    • D. Spinal cord
  5. What gas do plants absorb from air?

    • A. Nitrogen
    • B. Hydrogen
    • C. Carbon Dioxide
    • D. Oxygen
  6. Which is the fastest land animal?

    • A. Horse
    • B. Leopard
    • C. Cheetah
    • D. Lion
  7. What do bees make?

    • A. Honey
    • B. Wax
    • C. Milk
    • D. Silk
  8. What is an 'Antibiotic' used to treat?

    • A. Bacteria
    • B. Parasites
    • C. Viruses
    • D. Fungi
  9. Which organ helps in breathing?

    • A. Heart
    • B. Lungs
    • C. Brain
    • D. Kidney
  10. What is the main function of White Blood Cells?

    • A. Fight infection
    • B. Carry oxygen
    • C. Produce energy
    • D. Clot blood
  11. What is the term for a large geographic area with specific plants/animals?

    • A. Habitat
    • B. Eco-zone
    • C. Niche
    • D. Biome
  12. Which part of the cell is the powerhouse?

    • A. Golgi Body
    • B. Ribosome
    • C. Nucleus
    • D. Mitochondria
  13. What is the practice of planting trees to restore a forest?

    • A. Reforestation
    • B. Agriculture
    • C. Deforestation
    • D. Irrigation
  14. Which part of the cell is known as the 'protein factory'?

    • A. Vacuole
    • B. Ribosome
    • C. Mitochondria
    • D. Nucleus
  15. Which tree species is the oldest living organism on Earth?

    • A. Giant Sequoia
    • B. Redwood
    • C. Baobab
    • D. Bristlecone Pine
  16. What do bees collect from flowers?

    • A. Seeds
    • B. Dust
    • C. Pollen
    • D. Water
  17. What is the medical term for the 'windpipe'?

    • A. Larynx
    • B. Esophagus
    • C. Trachea
    • D. Bronchus
  18. What is the largest internal organ?

    • A. Brain
    • B. Heart
    • C. Lungs
    • D. Liver
  19. Which bone is the longest in the human body?

    • A. Femur
    • B. Fibula
    • C. Humerus
    • D. Tibia
  20. Which part of the plant conducts photosynthesis?

    • A. Root
    • B. Flower
    • C. Stem
    • D. Leaf