Cardiorespiratory fitness is most likely to improve due to which of the following types of exercise?

How does food play a part in our culture (us culture) and other cultures around the world?

To increase the amount of fibers in a muscle, you need to exercise at low intensity for increasingly longer periods of time.

Andrew feels good about himself. he doesn't know exactly why he is so happy, but every day he looks forward to his schoolwork and chores. "i play a game," he says. "i make a list of everything i have to get done, and then i try to finish it all before a certain time. for some reason, i feel great when i beat my time." based on this information, why is andrew happy? he gets a proper amount of sleep he eats healthy meals he has a strong family support group he regularly meets his own goals