Which Statement About the Cambrian Period Is True

question 109

Multiple Choice

Which statement about the Cambrian period is true?

• A) Multicellular life was probably limited to aquatic environment.
• B) The first multicellular life appeared.
• C) It marks the end of the Paleozoic era.
• D) Oxygen concentrations were extremely low.
• E) Large land mammals evolved.

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Definitions:

Sample Proportion

An estimate of the proportion within the entire population that possesses a particular attribute, derived from a subset of the population.

Manufacturing Process

The procedure through which raw materials are transformed into finished products through various mechanical, chemical, or physical operations.

Upper Control Limit

The highest value on a control chart that signals the process is still in control or within predetermined bounds.

Sample Proportion

The fraction or percentage of items in a sample that are part of a particular category, representing a snapshot of that category in the larger population.