The Ciliary Escalator Allows Unwanted Particles to Be Swept __________

question 66

Multiple Choice

The ciliary escalator allows unwanted particles to be swept __________.

• A)downward into the lungs
• B)into the bloodstream
• C)away when the smoker exhales
• D)upward to the throat,where they are usually swallowed

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Definitions:

Brick-and-mortar

Refers to a traditional business that operates in a physical store or building rather than online.

Purely Physical

Pertaining exclusively to the material or tangible aspects of something, devoid of any digital, virtual, or intangible components.

Freemium

A business model where basic services are provided free of charge while more advanced features must be paid for.

Subscription

An arrangement to receive products or services, such as publications or software, on a regular basis by paying a fee.