Organisms interact with each other and their environment in different ways. what is an organism’s niche?
a. the range of physical and biological conditions in which an organism lives and the way in which it uses those conditions.
b. all the physical and biological factors in the organism’s environment.
c. the range of temperatures that the organism needs to survive.
d. a full description of the place an organism lives.

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 !