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
Answer: c
Explanation: all cell membranes need to maintain function
<span>D. can incorporate new scientific discoveries. should be the answer. Hope I helped!</span>
The answer is B
A worker bee defends the hive while the queen be lay eggs like a good soldier would do
