Breathing the Air of Mexico City Is Like Smoking _____

question 34

Multiple Choice

Breathing the air of Mexico City is like smoking _____ pack(s) of cigarettes each day.

• A) One
• B) Two
• C) Three
• D) Four
• E) Five

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Definitions:

Chemical Barrier

A defense mechanism in the body that uses chemicals (such as acids or enzymes) to protect against pathogens and foreign substances.

Nonspecific Defense

General immune responses that a body provides against pathogens regardless of their specificity.

Phagocytosis

The process by which cells engulf and digest solid substances, such as bacteria or other foreign particles.

Neutrophils

A type of white blood cell important in the immune response, particularly in fighting bacterial infections.