BIO 101: http://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer_efficiency http://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer_... http://en.wikip

BIO 101: http://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer_efficiency http://en.wikipedia.org/wiki/Trophic_level#Biomass_transfer_... http://en.wikipedia.org/wiki/Ecological_efficiency http://en.wikipedia.org/wiki/Ecological_efficiency