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Biology & Life Sciences Quiz

Biology & Life Sciences · Medium

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 largest internal organ?

    • A. Brain
    • B. Heart
    • C. Lungs
    • D. Liver
  2. Which part of the brain controls balance?

    • A. Medulla
    • B. Hypothalamus
    • C. Cerebellum
    • D. Cerebrum
  3. What is the chemical symbol for Iron in the blood?

    • A. Fe
    • B. Ir
    • C. In
    • D. Au
  4. What is the term for species not native to an area?

    • A. Extinct
    • B. Invasive
    • C. Endemic
    • D. Endangered
  5. Which organ filters blood?

    • A. Liver
    • B. Kidney
    • C. Heart
    • D. Lungs
  6. What is the term for a large geographic area with specific plants/animals?

    • A. Habitat
    • B. Eco-zone
    • C. Niche
    • D. Biome
  7. Which organism is used for fermentation in bread?

    • A. Bacteria
    • B. Algae
    • C. Virus
    • D. Yeast
  8. Which organ controls brain?

    • A. Heart
    • B. Nerves
    • C. Head
    • D. Spinal cord
  9. What is the lifespan of Red Blood Cells?

    • A. 150 days
    • B. 120 days
    • C. 60 days
    • D. 90 days
  10. Which bone is the longest?

    • A. Fibula
    • B. Humerus
    • C. Femur
    • D. Tibia
  11. What do tendons connect?

    • A. Muscle to muscle
    • B. Bone to bone
    • C. Nerve to bone
    • D. Muscle to bone
  12. What is the medical term for high blood pressure?

    • A. Hypertension
    • B. Anemia
    • C. Hyperglycemia
    • D. Hypotension
  13. What is the process of plants losing water through leaves?

    • A. Photosynthesis
    • B. Respiration
    • C. Osmosis
    • D. Transpiration
  14. What is the primary function of the large intestine?

    • A. Thinking
    • B. Blood filtration
    • C. Water absorption
    • D. Digestion
  15. Who is the father of Genetics?

    • A. Lamarck
    • B. Charles Darwin
    • C. Gregor Mendel
    • D. Aristotle
  16. Which is the largest internal organ in the human body?

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

    • A. Femur
    • B. Fibula
    • C. Humerus
    • D. Tibia
  18. Where is insulin produced in the human body?

    • A. Pancreas
    • B. Liver
    • C. Gallbladder
    • D. Spleen
  19. Which organ is responsible for filtering blood?

    • A. Heart
    • B. Lungs
    • C. Liver
    • D. Kidneys
  20. What is the name of the light-sensitive layer of the eye?

    • A. Iris
    • B. Cornea
    • C. Retina
    • D. Lens