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Viruses and diseases

science 7

TermDefinition
Virus A non-living dependent on host cells for replication of genetic material
HIV A retrovirus that invades T-cells attacking the immune system and resulting in AIDS.
Pathogen Anything capable of causing infectious diseases.
Microorganism An organism that is too small to be seen with the naked eye
Bacteria Microorganisms important as decomposers : widely distributed and can break down just about any type of organic matter
Fungus Heterotrophic eukaryotes that reproduce through asexual spores:break down dead materials and can spread disease.
Parasite Lives in or on another organism (host) and derives nourishment from them,resulting in harm to the host organism.
Epidemic A widespread infectious disease that affects a single community at a specific time:can become a pandemic, if not contained and stooped.
Antibiotic A medicine that destroys or stops the growth or spread of microorganisms.
Host An organism in which a parasite resides and / or derives nutrients from.
Vaccine An injection of a killed or weakend pathogen that helps build an organisms's immune system against specific diseases.
Disease A disorder in an organism that produces adverse effetcs and is not a result of physical injury:can beidentified by specific signs or symptoms and canaffect one or more parts of the organism.
Pandemic A widespread infectious disease that affects a whole country,multiple countries or the whole world ; starts as an epidemic that was not contained and stopped.
Created by: mj4969472211
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