{'magnification means': [0, 0, 0, 1], 'microscope': [0, 0, 1, 0], 'organisms': [4, 1, 3, 2], 'bio': [4, 0, 1, 1], 'cancer cells': [0, 0, 0, 1], 'pesticides': [0, 0, 0, 2], 'microscopic parts': [0, 0, 0, 1], 'species': [0, 0, 0, 2], 'successive trophic level': [0, 0, 0, 1], 'sudden increase': [0, 0, 0, 1]}