One aspect of historical research and inquiry is to cluster events and concepts into meaningful groupings, sometimes by time period. Use the table below to organize the events above by their correct era. As an example, the first event has been completed.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse

i believe out of the choices it is a.

congress has authority over financial and budgetary matters, through the enumerated power to lay and collect taxes, duties, imposts and excises, to pay the debts and provide for the common defense and general welfare of the united states. the constitution also grants congress exclusively the power to appropriate funds.

mark brainlist it would alot

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