<em>The cells are striated and multinucleated appearing as long, unbranched cylinders. </em>
Yes, exercise or any physical activity will help your mental health and stress your welcome ;)
They are disease causing organisms.
From the list of individual sports in which an individual can compete, like swimming, diving, running, ice skating, wrestling, gymnastics, golf, tennis, skateboarding, in-line skating, biking, martial arts, and bowling, I think that swimming would be the most strenuous to play because it requires strength in specific muscle groups, endurance, and lots of power.