Chapter 10. Chapter 10: The Origin and Diversification of Life on Earth

Review & Rehearse
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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Review the visual summaries and answer the essay questions below.

Make sure to enter a brief response that completely answers each question and explains your reasoning. When you click "Submit," you will be provided instant feedback, allowing you to check if your response is correct.

(This activity contains 17 total essay questions. Each new question will be revealed once you complete the preceding question.)

1.

1. Which groups of organisms currently living on earth most resemble the earliest life forms?

Bacteria-like prokaryotic cells were the first life forms. Fossils of these organisms, 3.4 billion years old, have been found in Australia and South Africa.

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