Which of the following accurately describes an effect of smoking?
a. smoking lowers blood pressure.
b. smoking enables hemoglobin to carry more oxygen.
c. smoking damages cilia in the trachea and more particles enter the lungs.
d. smoking decreases heart rate.

Evaluate the scenarios and select the one that demonstrates the training principle overload. kai swims faster and faster every day. katie stays consistent in her routine. maggie does kickboxing daily so she can win a kickboxing match. sarah usually likes to run, but tries swimming. !