Question

As a person ages, his or her levels of cardiorespiratory fitness tend to __________.

A. improve
B. decline
C. stay the same
D. none of the above

Answer 1

the answer is B

Step-by-step explanation:

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Answer 2

Hi !

With aging, heart does not reamin the very efficient pacemaker.

As a person ages, his or her levels of cardiorespiratory fitness tend to : B. decline