Electromagnetic receptors are sensory receptors that allow animals to detect electromagnetic waves, such as visible light. In animal eyes, there are several different types of electromagnetic sensors called rods and cones. The table shown here contain information about rods and cones.

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 !