Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 19 - Self-Quiz - Page 317: 15

Answer

1. The Big Bang 2. Protocells 3. Onset of oxygen-releasing pathway of photosynthesis 4. Eukaryotes 5. Mitochondria 6. Chloroplasts

Work Step by Step

The big bang occurred 13.8 billion years ago. Protocells first occurred about 5 billion years ago. Photosynthesis first began 3.1 million years ago. Eukaryotes appeared 2.7 billion years ago. Mitochondria appeared 1.4 billion years ago. Chloroplasts evolved 100 million years ago.
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