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In laboratory, a scientist examines growth of two species of Plankton, A and B, grown eir toger or separately (Figure 1). Both plankton feed on same algae and densities of populations are examined over time. The culture is started in each case with same number of plankton, and in mixtures with a 1:1 ratio of each species. In anor experiment, growth of two algae, Species 1 and Species 2, is examined, with algae grown eir separately or toger(Figure 2)

Which of following represents relationship between Species A and B in Figure 1?