Create a model in the space below that demonstrates how neurotransmitters are released and act upon target cells. Start off by placing the items provided in the word bank into boxes. Upon filling in the boxes with the appropriate terms, represent the physiological relationships between the its by drawing in arrows between the terms. Finally, label the arrows to describe the relationship. An example is provided to help you get started. Stimulate/ Word Bank
initiates
Term A Term B
Vesicles filled with neurotransmitter
Axon terminal end membrane
Excitatory post synaptic potential
lonotropic receptor on post synaptic cell
Vesicle proteins
Ca2+ voltage gated channels
Action potential
Axon terminal end
Ca2+
Neurotransmitter
Synaptic cleft
Na+
Post synaptic cell .

Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa. which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.