DV CG
3. Three redwood trees are kept at different humidity levels inside a greenhouse for 12
weeks. One tree is left outside in normal conditions. The heights of the trees are measured
once a week.
IV

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.