Answer:They sleep to get rest and when they’re tired. If they do not sleep enough they will not be active in the morning
Explanation:
Hope that helps :D
Answer:
a. to defend against bacteria
Explanation:The skin helps protect the body and various body cells from infection. A break in the continuity of a skin can result into harmful germs,bacteria infection penetrating into the body system. Hence the skin is a protective covering from germs,infection.
Letter C.. Hand washing prevents germs spreading from another
