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Unformatted text preview: 200years Competition - - Bothse species decreas-Predation + - Abundaance ofpredator increases and abundance of preay decreases-Parasitism + - parasite increases host decreases-Commensalism + 0 one species inceases the other not affected-Mutualism + + both species increase Resource partitioning Competitive exclusion principle demonstrated by paramecium Exotic species Poly culture multi plants Mono culture single crop RACHEL CARSON- wrote Silent spring Women in the 50s earned a bach and a masters worked for the government DDT pesticide, that sterileizs the male...
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