The Beginning of the Phanerozoic Is Marked by The______

question 59

Multiple Choice

The beginning of the Phanerozoic is marked by the______ .

• A) existence of a modern atmosphere
• B) formation of large land masses
• C) abundant life forms compared to earlier times
• D) evolution of land plants and animals
• E) development of hard body parts, such as shells and bones

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Definitions:

Area

In statistics, often refers to the region under the curve of a probability distribution representing the probability of a range of outcomes.

Variance

An indication of how data points diverge from their average, showing the extent of their spread.

Normally Distributed

Describes a distribution that follows a bell curve, where data is symmetrically distributed with most values clustering around a central point.

Normally Distributed

Describes a statistical distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.