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DEFINITIONS
HEALTH:
A state of mental, physical, and social wellbeing,
not just the absence of disease.
DISEASE:
A departure from good health caused by a
malfunction of the mind or body.…read more

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GOOD HEALTH:
· Free from disease
· Well fed, balanced diet
· Happy
· Proper sanitation…read more

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DISEASE
· Disease causes symptoms
· Diseases caused by living organisms:
infectious diseases
· Symptoms usually physical, some mental…read more

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PARASITES
· Organisms that live in/on another living thing
· Harm their host ­ take nutrition
· Live on host = external parasites e.g. head
louse
· Live in host = internal parasites e.g.
tapeworms
· Live unnoticed ­ best way…read more

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PATHOGENS
· Organisms that cause disease
· Take nutrition from host whilst causing
damage…read more

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