The answer is “it is the gap between neurons” and “it ensures that information travels in one direction only.”
Answer:
Excess nitrogen can cause over-stimulation of growth of aquatic plants and algae. Excessive growth of these organisms, in turn, can clog water intakes, use up dissolved oxygen as they decompose, and block light to deeper waters. So few organisms live in these conditions or even can suffocate and die.
Where are they? Would love to answer
The brain which, along with the spinal cord gathers informationand responds to changes in the environment.
