B pimples can last more than 2 days
Nurseries educate children about helping others that will help them to form strong bonds with others as they grow. It's better for young children to be introduced to a disciplined environment that helps them to learn social behaviors and skills and behave well with others.
Answer:
2.1 located between the left atrium and the left ventricle (left atrioventricular orifice).
2.2 it helps to prevent blood from flowing backward as it moves through the heart.
