Some Fear a Serious Deterioration of the Biological Quality of the Human

question 48

Multiple Choice

Some fear a serious deterioration of the biological quality of the human population because:

• A) intelligent individuals will choose careers over family leaving the less advantaged and less educated to bear the majority of children.
• B) the birth rates are declining meaning the chances of healthy offspring is decreasing.
• C) the birth rates are increasing meaning the available talent of a society is being spread more thinly.
• D) of the limited interchange between people with different enough genes.

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Definitions:

Vital Capacity

The maximum volume of air a person exhales after filling the lungs to the maximum extent.

Bohr Effect

Increased oxyhemoglobin dissociation due to lowered pH; occurs as carbon dioxide concentration increases.

Partial Pressure

Partial pressure is the pressure that a gas in a mixture of gases would exert if it alone occupied the same volume at the same temperature, important in calculations involving gas laws.

Hemoglobin

A protein found in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide from the body to the lungs.