Mesopotamia?? I'm not quite sure this is a biology question.
Conduct is the word your looking for.
Definite volume is doesn’t possess a definite volume so therefore the answer is c
The heart and the arteries of a person, both contracts to pump the blood throughout the body. The aorta, which is the largest artery of the human body, pumps the blood from the heart to the entire body of a person. The oxygen-rich blood is pumped out of the left ventricle when its contraction into the aorta, from where it is transported to the whole body.
Hence, the given statement is true.
Snakes don't have any teeth