All of the following characteristics of hormones except Select one: a. Hormones alter activity in target cells b. Hormones interact specifically with receptors c. Hormones are stable in blood until arrival at target cells d. Hormones interact with any cells in contact with bloodstream

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 !