All of the Following Statements About the Evolution of Life

question 5

Multiple Choice

All of the following statements about the evolution of life on Earth are TRUE,EXCEPT

• A) evolution has involved several mass extinctions followed by periods of diversification.
• B) the first diversification of animal life occurred during the Cenozoic era.
• C) when life colonizes new habitats,it rapidly diversifies into new species.
• D) the dinosaurs most likely went extinct when a huge asteroid crashed into Earth.
• E) oxygen only became abundant in the atmosphere as a result of the evolution of photosynthetic organisms.

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Definitions:

Independent Variables

Variables in a statistical model that are presumed to influence or predict the outcome of a dependent variable.

Variances

Statistical measures reflecting the dispersion or spread of a set of data points or how far each value in the set is from the mean.

Covariance

A measure that indicates the extent to which two variables change together; if they increase or decrease similarly.

Coefficient Of Correlation

An index that measures the magnitude and direction of a straight-line association between two variables.