Scientists Estimate That for More Than _______ Years After Cells

question 87

Multiple Choice

Scientists estimate that for more than _______ years after cells originated, all organisms consisted of one cell.

• A) 2,500
• B) 250,000
• C) 2.5 million
• D) 2.5 billion
• E) 2.5 trillion

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Definitions:

Quantity Effect

The impact on total revenue or expenditure when the quantity sold of a good or service changes, holding its price constant.

Motor Homes

Recreational vehicles equipped with living quarters and amenities found in a home, used for traveling or camping.

Retailing

Retailing refers to the selling of goods and services directly to consumers for personal, non-business use.

Downward-Sloping

Refers to a line or curve on a graph that moves from the upper left to the lower right, indicating a negative relationship between two variables.