A placebo is kind of a "fake" treatment but, typically the person receiving a placebo is unaware it has no medical effect on them so they believe they are feeling better. For example, a lot of anxiety meds are placebos and people don't know so their brain tricks them into thinking they are feeling less anxious. This could be used in experiments where a group believes they are affected to see how they react
B. By using up less calories than you take
Some individuals in the rabbit population must evolve traits that improve their survival chances
Answer:
I believe it is false so I hope you get it right
