Science Notebook - Student Edition

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

The Histor y of Life 147

Main Idea Details

Cellular Evolution

I found this information

on page.

Sequence how oxygen accumulated in the atmosphere and the

effect it had on life by completing the flowchart below.

little

oxygen

in atmo-

sphere;

all living

things are

anaerobic

ozone

layer

forms

Identify three properties that mitochondria and chloroplasts share

with prokar yotes.

1.

2.

3.

Analyze the endosymbiont theor y of the evolution of plant cells by

completing the sequence chart.

bacteria

evolved into

mitochondria

Section 14.2 The Origin of Life (continued)

Analyze how the four requirements for life were identified by

scientists.

(^) SUMMARIZE