[ 203 ] Life Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • The Mountain Alcon Blue butterfly larvae release chemicals that confuse Myrmica schencki ants into believing that those larvae are queen ant larvae. The ants then bring the butterfly larvae into the ant brood and feed the butterflies preferentially over their own larvae as they think they will turn out to be queen ants. This is an example of ___________. • parasitism • commensalism • mutualism The energy available in an ecosystem is greatest at which level? A. producer B. primary consumer C. secondary consumer D. tertiary consumer Of the following options, in what way do humans contribute to desertification most? A. drought B. overgrazing C. acid rain D. overhunting