In both of these biomes, the life forms or biosphere, are limited greatly by the interaction or lack of interaction with another of earth's spheres. what sphere is that?

the answer is hydrospere

hope this helped

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Option C. Peripheral nervous system

Explanation:

The Parkinson's disease is a disorder that directly affects the nerve cells of the body. The neurons that produces dopamine dies in this disorder that produces symptoms like slowness, balancing problem and stiffness.

The Peripheral nervous system connects the CNS to body limbs and organs. The information is transferred from the brain and spinal cord to other body parts that helps to react with external stimulus.

In Parkinson's disease, the transfer of motor signals to muscles is prevented by inhibiting parts of peripheral nervous system. Thus, option C is correct.