Draw a diagram of the heart showing the three
layers composing its wall and its four chambers.
Label each. Show where the AV and semilunar
valves are. Show and label all blood vessels entering
and leaving the heart chambers.

it's false.

"every person has their limitations which prevent us from accomplishing something. some are better than mathematics for example and some are worse. those people who are worse might never be able to become mathematicians, but that does not mean that they would not be great at doing something else."

answerblank(1)///voluntaryblank(2)// internal;