Question

lo 4.2. what is the respiratory rate?

number of blinks per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.

number of words spoken per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.

number of steps taken per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.

number of heartbeats per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.

number of breaths per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.

Explanation:

The respiratory rate refers to the number of breaths per minute. Breathing is related to the respiratory system, which is involved in gas exchange to provide cells with oxygen for energy production. Blinks, words spoken, steps taken, and heartbeats are not related to the respiratory system.

Answer:

Number of breaths per minute that is highly regulated to enable cells to produce the optimum amount of energy on any given occasion.