You Are Examining a Recently Captured Organism from Another Planet

Multiple Choice

You are examining a recently captured organism from another planet and are currently trying to deduce the types of neurotransmitters associated with the propagation of nerve impulses.You discover a very interesting neurotransmitter and find that,in spite of being alien,it is a derivative of the amino acid tyrosine.As a result,this novel neurotransmitter has to be classified as a(n)

A) acetylcholine analogue.
B) catecholamine.
C) neuropeptide.
D) serotinin analogue.
E) GABA analogue.