Which did your answer include? Bt corn are corn plants that have been modified by genetic engineering to have a bacterial gene that produces a protein that is toxic to insects.

Because it produces the Bt toxin that kills the European corn borer, Bt corn is resistant to this pest. Bt corn does not need to be sprayed with insecticides.

Bt corn may harm beneficial insects such as Monarch butterflies.

The use of Bt corn may lead to pests that are resistant to Bt toxin, which could cause massive crop failure.

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !