Brainliest a corn plant has been genetically engineered. it produces pollen that can make its own toxins. these toxins protect the corn plant against pests. what is a likely impact on the environment around the corn plant? a. bird and butterfly populations around the area may increase. b. the concentration of pesticides in a nearby lake would increase. c. newer strains of pesticide-resistant pests may develop. d. the carbon dioxide level would increase in the area.