Part one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Biology
Tutor: None Selected Time limit: 1 Day

May 1st, 2015

Both species benefit -                                        Symbiosis -                              cattle egret, lichens

One species benefits the other is harmed         (parasitism)                           fleas on your dog

One species benefits, other is not harmed      (commensalism)                   whales and barnacles

living together - no harm done to either                                                                                                  

May 1st, 2015

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May 1st, 2015
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