1. only males are fertile. true or false
2. females produce gametes less often. true or false
3. only females produce gametes. true or false

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.