2401.
General Science & Ability
Which vitamin is important for normal vision and immune function?
Vitamin A
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2402.
General Science & Ability
Deficiency of which vitamin can cause scurvy?
Vitamin C
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2403.
General Science & Ability
Which vitamin helps the body absorb calcium and supports bone health?
Vitamin D
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2404.
General Science & Ability
Which mineral is required to make hemoglobin, the protein in red blood cells that carries oxygen?
Iron
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2405.
General Science & Ability
Which mineral is especially important for building and maintaining strong bones and teeth?
Calcium
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2406.
General Science & Ability
How many kidneys does a typical human have?
Two
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2407.
General Science & Ability
What is the main function of the kidneys?
To filter blood, remove wastes and excess water, and form urine
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2408.
General Science & Ability
Which organ stores bile before it is released into the small intestine?
The gallbladder
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2409.
General Science & Ability
Which organ produces bile?
The liver
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2410.
General Science & Ability
What is the main function of the large intestine?
To absorb water and convert remaining waste into stool
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2411.
General Science & Ability
Where does most nutrient absorption occur in the human digestive system?
The small intestine
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2412.
General Science & Ability
What is the primary function of the lungs?
To exchange oxygen and carbon dioxide between air and blood
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