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biology revision - Coggle Diagram
biology revision
vaccines
positives
they can create herd immunity , make people immune to deadly diseases
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how do they work
vaccines work by exposing the body to a small or weekend amount of a disease which the body can then creat antibodies for and become immune to the disease
bacteria
bacteria adn viruses may reproduce rapidly inside the body. bacteria may produce poisons (toxins) that damage tissues and make us feel ill viruseis libe and reproduve inside ells causing cell damage
example : food poisoning (salmonella ) , cholera
virus
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example : HIV(ADS), mussels
phatagins -they are microorganisms that cause infectious daises - the different types are viruses , bacteria ,protists or fungi
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anti body's
they help treat diseases but over time diseases can become resistant and creat super strains which can be past on
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