Activation energy ........
<span>
</span>Most cells of the body have self markers on the surface of their cell called the major histocompatibility complex (MHC). The MHC allows cells of the immune system to recognize the cell as part of our self.<span>system to recognize the cell as part of ourself.</span>
The virus becoms infection, and they create an epidemic that will last for a long time. This was the case back in the early days.
6H2O, 6CO2, (light) energy (inputs)
C6H12O6 (glucose), 6O2 (outputs)
Hope that helps :)
