Julia and Carlos Are Both Experiencing a Growth Spurt

question 233

Multiple Choice

Julia and Carlos are both experiencing a growth spurt. If they are typical adolescents, Julia will have _____ than Carlos.

• A) a lower proportion of body fat
• B) a higher proportion of body fat
• C) more upper body muscle
• D) narrower hips

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Definitions:

Breathing

The process of moving air in and out of the lungs to facilitate gas exchange with the internal environment, mainly by bringing in oxygen and flushing out carbon dioxide.

AV Node

AV Node (Atrioventricular Node) is a component of the heart's electrical system that delays the transmission of electrical impulses to the ventricles to ensure proper timing of heart contractions.

P Wave

The initial wave on an electrocardiogram representing atrial depolarization, or the electrical activity that triggers atrial contraction.

QRS Complex

A series of deflections in an electrocardiogram representing the electrical activity associated with the ventricular contraction.