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Laura H.
Current college nursing student
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Biology
TutorMe
Question:

What is the "all or nothing" component of nerve firings?

Laura H.
Answer:

An action potential will either fire completely (sending an impulse down the neuron) or not at all.

Anatomy
TutorMe
Question:

Which artery carries un-oxygenated blood?

Laura H.
Answer:

The pulmonary artery – un-oxygenated blood is carried from the right ventricle to the lungs via the pulmonary artery to get oxygenated.

Statistics
TutorMe
Question:

What does a Z-score of 0 mean?

Laura H.
Answer:

The score falls exactly on the mean.

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