1. What organ is primarily responsible for filtering blood?

2. Which animal is known as the “ship of the desert”?

3. Approximately how many miles of blood vessels are found in a single human adult?

4. What percentage of the body's total energy consumption is used by the brain?

5. Where in the human body is the smallest bone (the stapes) located?

6. What is the primary biological purpose of the sneezing reflex?

7. Which vital fluid is produced by the liver to help the body break down and absorb fats?

8. What is the name of the selective barrier that protects the brain from toxins and pathogens in the blood?

9. Which branch of the nervous system is responsible for the 'fight or flight' response?

10. What is the snail-shaped structure in the inner ear responsible for hearing?

11. What is the name of the process by which immune cells 'eat' or engulf pathogens?

12. What is the name of the muscle that controls the passage of food from the stomach to the small intestine?

13. What is the primary role of the 'red pulp' within the spleen?

14. Which of the five senses is the only one that does NOT pass through the thalamus before reaching the cerebral cortex?

15. Which vitamin is essential for the production of blood clotting factors in the liver?

16. Where in the human body are the menisci located?

17. What are the tiny projections in the small intestine that increase surface area for nutrient absorption?

18. What is the primary function of the gallbladder in the digestive process?

19. What is the name of the tough, fibrous membrane that covers the outside of a bone?

20. Which part of the brain is primarily responsible for fine-tuning motor movements and maintaining balance?