What Does the Circuit Symbol in the Figure Mean? ​

question 114

Multiple Choice

What does the circuit symbol in the figure mean? ​ ​

• A) Battery
• B) NOR-gate
• C) AND-gate
• D) Light
• E) Switch

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Definitions:

Hemoglobin

An iron-containing protein in red blood cells that transports oxygen from the lungs to the tissues and carbon dioxide back to the lungs.

Pulmonary Emphysema

A lung condition that causes shortness of breath due to over-inflation of the air sacs in the lungs.

Alveoli

Tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be expelled.

Bicarbonate

An anion (HCO3-) that plays a critical role in maintaining the pH balance in blood and other bodily fluids.