Scientists repeat the experiment to further prove it being correct, and they can replicate is with data, models, and other forms of proof of a correct hypothesis
This relates because at first the human species are vulnerable to the new disease but as natural selection in human evolution occurs the human species will be able to overcome the disease and become invulnerable.
That would be a Chloroplast
Plankton they are the base for marine life
The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
