CIENCIAS DE LA NATURALEZA 1º DE E.S.O.

1. CIENCIAS DE LA NATURALEZA1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 3: Life on Earth http://www.ancientlifepublishing.com/

2. 3.4. CLASSIFICATION OF LIVING THINGS

3. 3.4. CLASSIFICATION OF LIVING THINGS The Greek Aristotle developed the first classification system. It was used for nearly 2000 years

4. 3.4. CLASSIFICATION OF LIVING THINGS Other attepms of classifying living things

5. 3.4. CLASSIFICATION OF LIVING THINGS The most important attemps of classifying living things are: Eukaryotic cells Prokaryotic cells In your book, the five-kingdom system is used. We´ll use all of them, except that of Linnaeus, of course.

6. 3.4. CLASSIFICATION OF LIVING THINGS Carolus Linnaeus (1707-1778) Systema naturae (1735) The classification systems of both Aristotle and Linnaeus started with the same two groups: Plants and Animals. Linnaeus called these groups kingdoms. But, unlike Aristotle, Linnaeus divided kingdom into five levels: class, order, genus, species, and variety

7. 3.4. CLASSIFICATION OF LIVING THINGS How do scientists classify living things? TAXA Sumerize it in your notebook http://www.oum.ox.ac.uk/thezone/animals/animalid/classify.htm#squirrel

8. 3.4. CLASSIFICATION OF LIVING THINGS How do scientists name living things? Each species is named by two words: The first indicating the Genus and the second the species to which it belongs