Human Biology — MCQs Biology

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1. The basic structural and functional unit of the human body is:





2. The human skeleton is composed of:





3. Human bones are classified into:





4. The axial skeleton includes:





5. The appendicular skeleton includes:





6. Joints that allow free movement are called:





7. The heart is located in the:





8. The heart consists of:





9. The right atrium receives blood from:





10. The left ventricle pumps blood into:





11. Hemoglobin in red blood cells functions to:





12. White blood cells are responsible for:





13. Platelets are involved in:





14. The largest human organ is:





15. The skin consists of:





16. The primary site of nutrient absorption is:





17. The liver functions in:





18. The pancreas produces:





19. Neurons transmit:





20. The human brain is protected by:





21. Cerebrum is responsible for:





22. Cerebellum coordinates:





23. The medulla oblongata controls:





24. The human eye contains:





25. Rods in the retina are sensitive to:





26. Cones in the retina are sensitive to:





27. The human ear has three parts:





28. The cochlea is responsible for:





29. The semicircular canals are responsible for:





30. Hormones are secreted by:





31. Insulin is secreted by:





32. Thyroxine is secreted by:





33. Adrenal glands secrete:





34. The human kidney filters:





35. Nephrons are the:





36. Human lungs contain:





37. Oxygen is transported in blood by:





38. Carbon dioxide is transported primarily as:





39. Human reproduction involves:





40. Spermatogenesis occurs in:





41. Oogenesis occurs in:





42. Fertilization in humans occurs in:





43. Human gestation period is approximately:





44. The placenta functions in:





45. The umbilical cord contains:





46. Human blood groups are determined by:





47. The immune system protects the body from:





48. Human stomach secretes:





49. Human small intestine secretes:





50. Human large intestine is responsible for:





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