Ap. bursaria cell that has lost its zoochlorellae is said to be aposymbiotic. it might be able to replenish its contingent of zoochlorellae by ingesting them without subsequently digesting them. which of the following situations would be most favorable to the reestablishment of resident zoochlorellae, assuming compatible chlorella are present in p. bursaria's habitat?

a) abundant light, no bacterial prey
b) abundant light, abundant bacterial prey
c) no light, no bacterial prey
d) no light, abundant bacterial prey

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 !