Answer:The immune system is a complex network of cells and proteins that defends the body against infection.
The immune system keeps a record of every germ (microbe) it has ever defeated so it can recognise and destroy the microbe quickly if it enters the body again.
Abnormalities of the immune system can lead to allergic diseases, immunodeficiencies and autoimmune disorders.
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Kepler described the orbits of the planets as elliptical. They were thought to be circular.
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It had difint trats like it had hare laded eggs ect...
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bottom left is nerves up from that is fat the on right is capillary