The Melting Point of Water Is 0 $\degree$ C Its Freezing Point Is
A) Slightly Less Than 0

question 59

Multiple Choice

The melting point of water is 0 $\degree$ C. Its freezing point is

• A) slightly less than 0\(\degree\)C.
• B) 0\(\degree\)C.
• C) slightly more than 0\(\degree\)C.
• D) 32\(\degree\)C.

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Definitions:

Sinoatrial Node

The heart's natural pacemaker, located in the right atrium, responsible for initiating the heart's contractions.

Atrioventricular Node

A part of the electrical conduction system of the heart that helps regulate the heart rate by transferring signals from the atria to the ventricles.

Atrioventricular Bundle

A group of heart muscle fibers responsible for conducting impulses from the atria to the ventricles, ensuring coordinated heart contractions.

Pulse Pressure

The difference between systolic and diastolic blood pressure readings, indicating the force that the heart generates each time it contracts.