Examlex
Sphincter, or dilator, muscles are special circular muscles found in openings.
Constant
A fixed value that does not change in mathematical equations or in the analysis of data.
Age
A measure of the time someone or something has existed, typically expressed in years.
Cause-and-Effect
A relationship where one event (the cause) leads to the occurrence of another event (the effect).
Lurking Variable
A variable that is not directly studied yet influences the relationship between the independent and dependent variables under investigation.
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