What are two types of inbreeding and what is the difference between them

Inbreeding : taking a father to daughter, brother to daughter, mother to son and pairing them together. Inbreeding can cause deformations in the offspring(s). 
Line breeding : Using a 3 generation grandfather to the first generation " grand" daughter. Line breeding helps preserve the qualities one holds that is down the line. 

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.