Vigorous exercise should provide a significant challenge to your cardiorespiratory system

True

Vigorous exercise will make your metabolic rate go up and will make your body need more oxygen.

This will make your heart rate go up (so it get the oxygen needed) which will provide challenge to your cardio respiratory system.

I am almost positive it is true. I just took the test on edge.

Explanation:

Also:

Remeber you are special and that somebody loves you. Air hugs to anybody who needs one!

make sure to make and print a resume. go through some questions they might ask you. make sure you dress appropriately for the interview and make sure you are organized and prepared for what they say to you. hope this have a good day! : )