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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A concept in economics that represents the sum of utilities associated with all possible outcomes, weighted by the probability of each outcome.