What brings up tiny organism and nutrients from deep ocean layers

I believe the only explanation to this is that the tiny organisms and nutrients from deep ocean layer is from dead fishes and other organisms from the deep ocean layer that is how the other fishes get their food supply and nutrients. When a fish dies especially in the deep ocean their bodies float to the top of the ocean.

I believe that is your answer.
Hope this helped :)
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Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.