How does the behavior of deep water species affect the balance of life higher up?

Deep sea has species such as archaea that thrive in hydrothermal vents and turn inorganic molecules into organic molecule through chemosynthesis. This provides the start of the food chain that ends up higher up the waters. Also in the deep oceans are scavengers that feed off dead fish that sink to the bottom of the ocean. They help recycle these nutrients by consuming the carcasses.

answer: c.

explanation:

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .