Answer:
A) To make sure that the effect is not occuring through actions in the nervous system
Explanation:
In the above scenario, researchers actually studies the effect of hormone to the organ but they are in a situation to study the effect on organ are either hormone base or nervous system base (neurons). For this reason they will cut the neurons to study the effect of hormone on the organ.
So, to check the effect of hormone they should cut the neurons to make sure these effect are not due to actions of nervous system.
I believe the answer is 2: multiple ecosystems in a biome
Answer: c
Explanation: because it helps by excreting
