Remoras are small fish that attach to sharks but do not harm them. When sharks tear prey apart, remoras eat the leftovers. What relationship do remoras have with sharks? A.)Mutualism
B.)Parasitism
C.)Commensalism
D.)Predator-prey

The answer is observations and interpreting.

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.