A Wildcard Character Is Used as a Placeholder for an Unknown

question 77

True/False

A wildcard character is used as a placeholder for an unknown part of a value or to match a certain pattern in a value.

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Definitions:

Atrioventricular Valves

Valves between the atria and ventricles of the heart that prevent the backflow of blood.

Semilunar Valves

Heart valves located at the bases of the large arteries that exit the heart (the aorta and the pulmonary artery); they prevent blood from flowing back into the heart's ventricles after contraction.

Stethoscope

A stethoscope is a medical instrument used to listen to the internal sounds of the body, particularly the heart and lungs, for diagnostic purposes.

BIOPAC

A technology and equipment provider for recording and analyzing physiological data for research and education purposes.