Human body quiz - 5 questions.

Human body quiz.
1) What is the name of the largest bone in the human body?
A) Tibia
B) Humerus
C) Femur
D) Pelvis
Answer: C) Femur
2) Which organ is responsible for producing insulin?
A) Liver
B) Pancreas
C) Kidney
D) Gallbladder
Answer: B) Pancreas
3) What part of the eye controls the amount of light that enters?
A) Retina
B) Cornea
C) Iris
D) Lens
Answer: C) Iris
4) What is the main function of red blood cells?
A) To fight infections
B) To carry oxygen
C) To produce antibodies
D) To aid in blood clotting
Answer: B) To carry oxygen
5) Which part of the brain is primarily responsible for balance and coordination?
A) Cerebrum
B) Brainstem
C) Cerebellum
D) Thalamus
Answer: C) Cerebellum
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