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Quiz:
Human Body Wonders
End(
)
Question 1 of 25
What is the largest organ of the human body?
Choose 1 answer
Liver
Lungs
Skin
Heart
Question 2 of 25
How many bones are in the adult human body?
Choose 1 answer
206
208
210
220
Question 3 of 25
Which part of the human body has the smallest bones?
Choose 1 answer
Hands
Feet
Ears
Skull
Question 4 of 25
What percentage of the human body is water?
Choose 1 answer
50%
60%
70%
80%
Question 5 of 25
Which human organ can regenerate itself?
Choose 1 answer
Liver
Heart
Lungs
Kidneys
Question 6 of 25
Which is the strongest muscle in the human body based on its size?
Choose 1 answer
Biceps
Gluteus maximus
Masseter
Quadriceps
Question 7 of 25
What is the normal pH level of human blood?
Choose 1 answer
6.8
7.0
7.4
7.6
Question 8 of 25
Which part of the brain is responsible for balance and coordination?
Choose 1 answer
Cerebrum
Cerebellum
Brainstem
Hippocampus
Question 9 of 25
Which blood type is considered the universal donor?
Choose 1 answer
A+
B+
AB+
O-
Question 10 of 25
What is the main function of red blood cells?
Choose 1 answer
Fighting infections
Carrying oxygen
Clotting blood
Removing waste
Question 11 of 25
Which organ is known as the body's detox center?
Choose 1 answer
Kidneys
Liver
Stomach
Pancreas
Question 12 of 25
Which hormone regulates the sleep-wake cycle in humans?
Choose 1 answer
Insulin
Melatonin
Cortisol
Serotonin
Question 13 of 25
Which is the most abundant mineral in the human body?
Choose 1 answer
Iron
Zinc
Calcium
Magnesium
Question 14 of 25
Which human body system is primarily responsible for producing hormones?
Choose 1 answer
Nervous system
Endocrine system
Respiratory system
Circulatory system
Question 15 of 25
Which human organ pumps blood throughout the body?
Choose 1 answer
Liver
Lungs
Brain
Heart
Question 16 of 25
How long does it take for food to pass through the entire digestive system?
Choose 1 answer
12-24 hours
24-48 hours
48-72 hours
72-96 hours
Question 17 of 25
What part of the eye controls the amount of light that enters?
Choose 1 answer
Lens
Retina
Cornea
Iris
Question 18 of 25
Which organ of the human body produces insulin?
Choose 1 answer
Liver
Pancreas
Kidneys
Thyroid
Question 19 of 25
How many chambers does the human heart have?
Choose 1 answer
2
3
4
5
Question 20 of 25
Which gas is primarily exhaled by humans after respiration?
Choose 1 answer
Oxygen
Nitrogen
Carbon dioxide
Hydrogen
Question 21 of 25
Which part of the human body does not have a blood supply?
Choose 1 answer
Nails
Hair
Cornea
Skin
Question 22 of 25
Which system in the body is responsible for protecting against diseases?
Choose 1 answer
Nervous system
Digestive system
Immune system
Endocrine system
Question 23 of 25
What is the primary function of white blood cells?
Choose 1 answer
Transporting oxygen
Fighting infections
Clotting blood
Regulating metabolism
Question 24 of 25
How many pairs of ribs does the human body have?
Choose 1 answer
10
11
12
13
Question 25 of 25
Which is the longest bone in the human body?
Choose 1 answer
Humerus
Femur
Tibia
Fibula
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