Ophelia wants to become a better swimmer, so she has decided to practice at the local pool. which of the following is the best way for her to stay safe during her workout?
a) swimming alone until she can keep up with the other athletes
b)going for a brief walk ahead of time and stretching afterward
c)aiming for the fastest possible lap time on her first time swimming
d) eating a large meal right before her workout so she has energy

Which statement best describes the role of the artificial heart? the artificial heart is a good replacement option for individuals who do not want a human heart. the artificial heart has been a great option because it can keep patients alive for a very long time. the artificial heart is not a good option because of the high possibility for rejection. the artificial heart has limited usefulness but can prolong life or be a tool to use while waiting for a transplant.