Nitrogen in the is not in a form that plants can use.
1.water
2.soil
3.atmosphere
4.none of the above

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Called for cell.

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.

The anwser is the universe