Which Statement Is True

question 18

Multiple Choice

Which statement is true?

• A) Biologists have discovered almost all of the species that inhabit Earth.
• B) Biologists have discovered about three-quarters of the species that inhabit Earth.
• C) Biologists have discovered about half of the species that inhabit Earth.
• D) Biologists have discovered only a small percentage of the species that inhabit Earth.
• E) Biologists have discovered a small percentage of the species that inhabit Mars.

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Definitions:

Correlation

A measure that indicates the extent to which two or more variables fluctuate together.

Positive Correlation

A relationship between two variables in which both variables move in the same direction, indicating that as one variable increases, the other also increases.

Alcohol Consumption

The act of drinking beverages containing ethanol, which can have various effects on health and behavior depending on the amount and frequency of intake.

Negative Correlation

A connection between two variables where one variable rises while the other falls.