Answer:
is part of the cardiovascular system;
pumps blood to the cells in the body works;
closely with the lungs
Explanation:
The heart is a muscle that pumps blood through the blood vessels and that is the essential function. It is the main and central organ of the circulatory system.
The heart weights between 200 and 425 grams. It is located between lungs, in the middle of the chest and it is divided into four chambers in humans, other mammals, and birds heart.
<span>False. Sexual diseases can be transmitted anytime infected genitals come into contact with another persons mouth or genitals. This means that oral sex is just as easy to transmit diseases as actual intercourse. HIV specifically, just requires the transmission of fluids from one person to another.</span>
c.tissue - the epithelium is a kind of tissue that makes up several organs in the body.