2413.
General Science & Ability
Which blood components are primarily responsible for clotting?
Platelets
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2414.
General Science & Ability
What is the main function of white blood cells?
To help the body fight infection
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2415.
General Science & Ability
What is the main function of red blood cells?
To carry oxygen from the lungs to body tissues
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2416.
General Science & Ability
Which chambers of the heart pump blood out of the heart?
The ventricles
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2417.
General Science & Ability
Which chambers of the heart receive blood?
The atria
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2418.
General Science & Ability
How many chambers does the human heart have?
Four
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2419.
Proper handwashing and hygienic food handling
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2420.
General Science & Ability
Why do antibiotics not treat viral infections such as the common cold?
Antibiotics act against bacteria, not viruses
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2421.
General Science & Ability
What is the main purpose of vaccination?
To train the immune system to recognize and fight specific pathogens or diseases
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2422.
General Science & Ability
Which greenhouse gas is released in large quantities by burning fossil fuels?
Carbon dioxide (CO2)
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2423.
General Science & Ability
Which human-produced gases were chiefly responsible for historical depletion of stratospheric ozone?
Ozone-depleting substances such as chlorofluorocarbons (CFCs)
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