Classification of Life, 2nd EditionTwenty-First Century Books, 1 янв. 2013 г. - Всего страниц: 78 How are polar bears related to pandas? For thousands of years, philosophers and scientists have tried to organize and understand, or classify, the relationships among Earth's animals and plants. Early classification systems were cumbersome and inconsistent. In the late 1720s, Carl Linnaeus began developing a classification system to describe relationships among all living things, including animals, plants, fungi, and bacteria. This organization, called the tree of life, is still the basis of the classification system used by scientists today. |
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... cell needs to carry out the activities that maintain life. Parents pass DNA to their offspring during reproduction. Jones and Davenport could see that their newfound monkey has a lot in common with all monkeys. It has long arms and legs ...
... cells. To classify bacteria and other tiny organisms, researchers study the organisms' DNA and other molecules. Because appearance plays a smaller role in modern classification, the meaning of species has shifted to “kind.” A species is ...
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Содержание
4 | |
9 | |
17 | |
Classification Meets Evolution | 26 |
Adding New Kingdoms | 34 |
The Birth Of Cladistics | 40 |
Kingdoms Or Domains? | 49 |
Glossary | 62 |
Biographies | 66 |
Source Notes | 71 |
Selected Bibliography | 72 |
Further ReadingWebsites | 74 |
Index | 76 |
Photo Acknowledgments | 78 |
Back Cover | 80 |
Timeline | 64 |