Divergence Time Estimates Based on Molecular Clocks Are

question 14

Multiple Choice

Divergence time estimates based on molecular clocks are

• A)likely to be correct plus or minus a few decades.
• B)more reliable than divergence dates that are based on analysis of the fossil record.
• C)best interpreted with caution,since they depend on assumptions that are difficult to test.
• D)usually worthless since we cannot directly observe divergence times unless we invent a time machine.

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Output Level

The total amount of goods or services produced by a business, sector, or economy within a specific timeframe.

Average Variable Cost

The total variable costs (like labor and materials) divided by the quantity of output produced, indicating the variable cost per unit.

Variable Cost

Costs that change in proportion to the activity of a business, such as materials and labor costs.

Total Cost

The complete cost of production that includes both fixed and variable costs.