Answer:
One muscle flexes while the other extends
Explanation:
People who are sad because of some one that died
People who have went through a broken heart
Orphans
Homeless
People who became hit by bad news
People who are lonely
People who never have someone to cheer them up.
The Epiglottis protects food from entering the larynx.
Hello User,
Answer:
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
