You are working on a project in which you block autophagy in a particular portion of the brain of a laboratory animal. What happens to these animals? 1) Nothing happens since nerve cells are so long-lived. 2) That region of the nervous system experiences a massive loss of nerve cells. 3) There is slight, but not dangerous damage, to the organelles and proteins of the nerve cells. 4) There is continuous damage to the proteins and organelles of these long-lived cells.

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 !