Q21. Which cell organelle controls activities?
Correct: Nucleus
Nucleus is control center.
Q22. Which blood cells fight infection?
Correct: WBC
WBC fight disease.
Q23. What is the longest bone in body?
Correct: Femur
Femur is the longest bone.
Q24. Which part of brain controls balance?
Correct: Cerebellum
Cerebellum controls balance.
Q25. Which gas is released during photosynthesis?
Correct: Oxygen
Oxygen is released.
Q26. Which organ produces insulin?
Correct: Pancreas
Pancreas produces insulin.
Q27. What is the normal body temperature?
Correct: 37°C
Normal is 37°C.
Q28. Which system controls hormones?
Correct: Endocrine
Endocrine system controls hormones.
Q29. What is the functional unit of kidney?
Correct: Nephron
Nephron is kidney unit.
Q30. Which tissue connects bones to bones?
Correct: Ligament
Ligaments connect bones.
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