Scientists have been able to insert genes from bacteria into the dna of corn plants. this gives some species of corn additional resistance to pests. why would this breakthrough be beneficial to humans? a. farmers will increase their use of chemicals that kill pests. b. less chemical residue will be found in the air and water. c. bacteria will flourish inside the corn plants. d. the corn will cause illness in humans or animals. e. the amount of corn produced per acre of farmland will decrease.