Diversity of Species

                                     Classification of Species





   Pre-listening:

   

   1.      How many species become extinct each day, every year? Have a guess.

   

   

   

   2.      Make a definition of a species.

   

   

   

   

   

   

   3.      What is the taxonomy of living organisms? List the basic categories.

          

   +--------------------------------------------------------------------------------------------+
   |species      |             |            |            |            |            |            |
   |             |             |            |            |            |            |            |
   |             |             |            |            |            |            |            |
   +--------------------------------------------------------------------------------------------+

   

   

   

   

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   Listening:

   http://www.bbc.co.uk/radio4/science/homeplanet_20030715.shtml (time 9.16)

   

   

   1.      How many species become extinct each day, every year?

   

   2.      Complete Philip´s definition of a species.

   

   a group of similar ..................... that look quite alike, that can usually
   ..................... among themselves and .....................fertile ......................

   

   3.      Complete the taxonomic groups you hear.

   

   +--------------------------------------------------------------------------------------------+
   |species      |             |            |            |            |            |            |
   |             |             |            |            |            |            |            |
   |             |             |            |            |            |            |            |
   +--------------------------------------------------------------------------------------------+

   

   4.      Ben is speaking about two types of taxonomists. Can you characterize them?

   

   splitters

   

   

         lumpers