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| How Ecosystems Work | |
| 作者： | Julie K. Lundgren |
| 出版社： | Britannica Digital Learning |
| 組合： | Read and Discover Series (Primary)_II |
| 簡介： | This book explains what an ecosystem is and how the plants and animals within an ecosystem rely on and affect the ecosystem's existence. Different types of ecosystems are described, as well as the food webs within them. Through its presentation of how some changes to an ecosystem can be good while others are harmful, students discover the important role they can play in keeping ecosystems alive and well. |
| 標籤： | 生物, 科普, 英文 |
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