Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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During what period of the 8.4 billion-year history of life have humans evolved?

Jurassic
Holocene
Cenozoic
Mesozoic

The correct answer is: Cenozoic

The Cenozoic Era is the correct answer because it refers to the "Age of Mammals", which includes human evolution. The Jurassic and Mesozoic Eras occurred before the evolution of mammals and humans. The Holocene Epoch is the most recent geological epoch, but it is only a small part of the Cenozoic Era. Therefore, it is not a correct answer.