An example of homeostasis is the increase in maximum heart ...

[lak]

An example of homeostasis is the
 
  increase in maximum heart rate with age.
  reserve that allows a person to do without a night of sleep.
  increase in heart rate and breathing that occurs during physical exertion.
  loss of muscle tone that occurs in the absence of exercise.

Question 2

Larry is 30 years old and will play tennis with 18-year-old Chris. They are equally matched in ability. Larry will probably
 
  spend less time in warm-up because he is more mature.
  need more rest afterward to allow bodily functions to return to normal.
  need less rest afterward because he is stronger.
  lose; he cannot keep up with an 18-year-old.

[macmac]

Answer to Question 1

increase in heart rate and breathing that occurs during physical exertion.

Answer to Question 2

need more rest afterward to allow bodily functions to return to normal.

[lak]

Excellent

[matt95]

Wow, this really help