Microvilli are found on cells of the inner surface of the small intestine, where they Microvilli are found on cells of the inner surface of the small intestine, where they increase the absorption of nutrients from digested food. protect the intestinal lining from irritants or toxins in the food. push food along the digestive tract. slow the movement of food through the digestive tract. sense the presence of food in the digestive tract.

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 !