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The function of an immune system is to fight infections through the production of cells that inactivate foreign substance or cells.

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The immune system produces cells called antigen these cells fight off pathogens.Pathogens are cells that cause you to get sick. Antigens are created in the tonsils and thymus.

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How does your immune system work? - Emma Bryce

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Describe what would happen in a person with a compromised immune system

*It can lead to skin infections, bronchitis, autoimmune disorders, inflammation of internal organs and they should also avoid ill people because they have a weak immune system

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Which of the following is an example of an antigen that might be recognized by the immune system of an individual?
A. Vital protein
B. A fat molecule
C. Saline solution
D. Oxygen molecule

*Answer is A vital protein

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Which of the following structures is not found in bacteria?
1.ribosome
2.cytoplasm
3.cell membrane
4.nuclear membrane

*NUCLEAR MEMBRANE

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What are the main ways in which bacteria and viruses differ?
A. Viruses are considered living while bacteria needs a host
B. Bacteria requires a host cell in order to replicate
C. Bacteria are considered living while viruses need a host
D. Bacteria have their genetic material enclosed within a true nucleus while a virus does not

*Answer C Bacteria are considered living while viruses need a host