Answer:
latissimus dorsi
Explanation:
it's the largest muscle on your upper body, and doing pull ups helps strengthen it.
Answer: Monitoring your heart rate is important, because it reflects your overall health. The lower the heart rate the better, but obvisouly it can't go past a certain point. It shows basic body function and general fitness. It can indicate any abnormalities or health issues.
They can make friends there, and feel like they are worth talking to, which makes them feel happier.
Also, when getting a question right, or maybe getting a good grade on a worksheet, can make them feel smart, which also makes them feel happier.
Hope this helps, and happy studying~!
~{Dunsforhands}
