<h2>B) Transport substances directly to the body cells</h2><h2 /><h3>Explanation:</h3><h3 />
Capillaries are very thin blood vessels that were first found in frog lungs in 1661. They bring nutrients and oxygen to muscles and eliminate trash products. They are only one cell thick, and they are the sites of the transferal of oxygen and other nutrients from the bloodstream to other muscles in the body, they also accumulate carbon dioxide waste elements.
This depends, if your life is at risk because of an illness and there is nothing else to save your life you need drugs, but if it is just abonimal pain in your stomach you could drink water or herbal teal.
Obesity <span>is the most significant public health issue facing people in the U.S. today. The other categories has a low frequency to occur than Obesity.</span>