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Which of the following is the correct sequence of events in the transmission of an action potential in a neuron?

Resting potential, depolarization, repolarization, hyperpolarization

Resting potential, hyperpolarization, depolarization, repolarization

Depolarization, repolarization, hyperpolarization, resting potential

Hyperpolarization, resting potential, depolarization, repolarization

Which of the following is a function of the respiratory system?

Regulation of blood sugar levels

Elimination of waste products

Transport of oxygen and carbon dioxide

Control of voluntary movements

Which of the following is NOT a function of the skeletal system?

Protection of internal organs

Support for the body

Production of red blood cells

Storage of minerals such as calcium and phosphorus

Which of the following is an example of a hormone?

Insulin

Hemoglobin

Collagen

Keratin

Which of the following is a function of the circulatory system?

Production of hormones

Exchange of gases

Digestion of food

Transport of nutrients and waste products

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