Please help asap

I’m pretty sure its the second one.

Because;
- turning glucose into atp is the whole point of cellular respiration. Therefore, it must be the input into the equation, so the 4th choice is out.
- lactose has nothing to do with cellular respiration, so the 1st choice is out.
- ethyl alcohol is a product of alcoholic fermentation, not an input. For this reason, the 3rd choice is out.
- the answer should then be the 2nd choice

Hope this helps :)

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.

Atissue is a group of connected cells that have a similar function within an organism.