] An unknown liquid sample is tested for chemical composition. You receive the following results: iodine test=yellow, bluret test =
blue; Benedict's test = blue; and paper lipid test = clear. Which of the following are present in this sample? (Select all that apply)
Check All That Apply
nces
starch
protein
sugar
lipids
None of these are present

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 !