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A thermocline (also known as the thermal layer or the metalimnion in lakes) is a thin but distinct layer in a large body of fluid (e.g. water, such as an ocean or lake, or air, such as an atmosphere) in which temperature changes more rapidly with depth than it does in the layers above or below.
Acetycholine is hormone as well as neurotransmitter. in the CNS it is a neurotransmitter and in CVS it acts as hormone. + 3 others found this useful. Phoebe Dala. Edit. Share to: Judy Olmsted. 79,010 Contributions. Retired college science professor. Member of Beta Beta Beta Biological Honor Society.hen â¦ the target cell is reached, it will trigger a specific response in that cell. The major difference is that neurotransmitters are specific to nerve tissue, and travel from one neuron to the next. The target cell is the next neuron; it is a short distance which is traveled very quickly.