Having traveled through the arteries and capillaries, the blood have already lost considerable amount of pressure when it is to travel through the veins. The veins are composed of one-way valves as when the veins are squeezed, it pushes the blood to the valves.
<span>Phosphorus. Phosphorus is another element that is essential for bone growth. 85% of our body's phosphorous is incorporated in our bones as calcium phosphate.</span>
Archaea are found in the harshest environments on Earth, and are the oldest known organisms on Earth, appearing in the fossil record over 3.6 BILLION years ago
