How Long Does It Typically Take for a Protostar to Form

question 32

Multiple Choice

How long does it typically take for a protostar to form a star?

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Definitions:

Inhibitory PSPs

Post-synaptic potentials that make a post-synaptic neuron less likely to generate an action potential.

Absolute Refractory Period

A period immediately following the firing of a nerve fiber when it cannot be stimulated for a brief period, regardless of how strong the incoming stimulus may be.

Relative Refractory Period

A period shortly after the firing of a nerve during which the nerve cannot be stimulated to fire again at its maximum rate, but can still respond to a stronger than usual stimulus.

Firing Rate

The frequency at which a neuron discharges electrical impulses over a certain period of time.