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Overview
Green plants evolved from aquatic, single-celled green algae about 500 million years ago. Now, all animals derive their food either directly or indirectly from plants. Without photosynthesis, atmospheric oxygen levels could not be maintained. Consequently, the study of plant life is central and fundamental to an understanding of the living world.
| ISBN-13 | 9780766104341 |
|---|---|
| ISBN-10 | 0766104346 |
| Weight | 0.09 Pounds |
| Dimensions | 10.98 x 8.50 x 0.12 In |
| List Price | $13.00 |
| Format | Paperback |
|---|---|
| Pages | 24 pages |
| Publisher | Kessinger Pub Co |
| Published On | 1998-02-01 |
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