Which Statement About Changes in the Respiratory System Is Incorrect

question 19

Multiple Choice

Which statement about changes in the respiratory system is incorrect?

• A)Respiratory muscles weaken.
• B)Lung tissue is more elastic.
• C)Coughing may be more difficult.
• D)Respiratory infections and diseases can threaten the person's life.

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Definitions:

National Saving

The total amount of saving in a country, equal to the sum of private and public saving, representing the national income not spent on consumption or government expenditure.

Public Saving

The portion of a government's budget surplus, which is the difference between tax revenues and government spending.

Private Saving

Private saving is the portion of households' and businesses' income that is not spent on consumption or taxes, typically saved for future investment or consumption.

Closed Economy

An economy that does not interact with other economies in the world