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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... flowering plants are dicots. A dicot has two seed leaves, wide leaves with networks of veins, and flower parts occurring in fours or fives or multiples of four or five. Later, Ray turned his attention to animals. He pub- lished his most ...
... flower petals. Tournefort clustered the ten thousand species into nearly seven hundred larger, more general groups ... flowering plants that grow from bulbs. All irises are monocots with big, showy blossoms. This genus contains more than ...
... flowers, put them in new classes, reform the names and families in an entirely novel fashion, some- thing that demanded time and almost did away with sleep.” He knew this would be a big job. But he had no idea it would take more than ...
... Flower. cal similarities. divided the plant kingdom into Linnaeus twenty-four classes. To sort plants into these studied the number and posiclasses, he tion of stamens (male reproductive organs) inside their flowers. He divided the ...
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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 |