Examlex
A hypothesis is a relationship between two or more variables that the researcher knows already exists.
Pulse Rate
The number of heartbeats per minute, an indicator of heart rate and overall cardiovascular health.
Beats/Minute
A unit of measurement indicating the number of heartbeats in one minute, commonly used to express heart rate.
Cardiovascular System
The system comprising the heart and blood vessels, responsible for circulating blood throughout the body to supply tissues with oxygen and nutrients.
Bicuspid Valve
Also known as the mitral valve, it is a valve in the heart between the left atrium and left ventricle that allows blood to flow one way only, from the atrium into the ventricle.
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