The Intensity of a 70-DB Whistle Is Quintupled

question 25

Multiple Choice

The intensity of a 70-dB whistle is quintupled. What is the new decibel level?

• A) 70 dB
• B) 55 dB
• C) 82 dB
• D) 350 dB

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Definitions:

Natural Killer Cells

A type of lymphocyte important in the body's innate immune system, responsible for the early defense against both tumor cells and various infections.

Altered Self-Cells

Cells that have undergone genetic or structural changes, distinguishing them from their original state, often related to diseases like cancer.

Antiviral Activity

The capability of substances or treatments to inhibit the growth, replication, or spread of viral pathogens, thereby combating viral infections.

Interferons

Cytokines produced by animal cells when challenged by a virus; prevent viral reproduction and enable cells to resist a variety of viruses.