A security camera can come in many different shapes including dome, bullet and c-mount. C-mount camera can specifically hold custom lens, so you can design exactly the kind of lens you need for your security situation. The best security camera for you will depend on where and when you plan to use it.
1 Transports O2, CO2, nutrients, hormones, heat and wastes. 2  Regulates pH, temperature, water content of cells. 3  Protects against blood loss through clotting. 4  Protects against disease through phagocytic white blood cells and antibodies. 5  The process by which blood is made is called Haemopoiesis.
The main function of red blood cells (erythrocytes) is to distribute oxygen to body tissues, and to carry waste carbon dioxide back to the lungs. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels.