Question

How are message carried across a synapse

Answer 1

through synapse, messages are carried by neurotransmitters (which help in chemical communication).

Answer 2

Answer:  

The message across the synapse is carried by means of electrical impulse.

Explanation:  

The space between the axons of one neuron and the dendrites of another neuron is called as a synapse, when a message is said to be communicated, there occurs generation of an electrical Impulse on the axon of one neuron which is triggered by the induction of neurotransmitters, this is transferred to the other side as a message.