Environmental diseases test 1-22-15
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| Miasma Theory of Disease | poisonous vapor or mist filled with particles from decomposed matter
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| What replaced the Miasma Theory of Disease | Germ Theory of Disease
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| Germ Theory of Disease | microorganisms that are too small to see without magnification
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| Why were bloodletting and water cure not affective? | they didn't address the actual cause of the disease
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| non-transmissible disease | not contagious; EX: cancer, heart disease
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| Example of a Large parasite | tapeworm
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| Example of fungi | athletes foot
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| Example of protozoa | malaria
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| Example of bacteria | food poisoning
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| Example of viruses | AIDS
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| Example of prion | mad cow disease
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| emergent disease | something that resurfaces or is completely new
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| Why is a completely new disease bad? | 1. you don't have a built up resistance 2. don't have medications
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| What was the problem with spraying of the DDT trying to control malaria? | it created a fog that was toxic to all people and animals
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| Why are bacteria able to evolve resistance more quickly than other organisms? | their small size and fast reproductivity
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| carcinogens | chemicals that cause cancer; EX: tobacco smoke
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| teratogens | chemicals that cause birth defects in an unborn fetas; EX: drinking
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| hormone mimics | have similar affects to hormones
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| hormone blockers | prevents natural hormones from attaching to their target organ
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| how is the plastic additive BPA classified? | endocrine disruptor
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| how are you exposed to BPA? | plastics
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| "Any synthetic or natural chemical has the potential to cause harm.... | ....if the level of exposure is high enough."
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| Which type of solubility is more likely to lead to the accumulation of a toxin in the body? Why? | oil soluble because they live in the fat stores in your body
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| What is an example of an acceptable risk with a high probability of exposure? Why is this risk acceptable? | Mercury in seafood; it is acceptable because while there is a high risk of exposure, the affects are not severe
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| Why would someone be biased to risk assessment? | 1. biased media 2. Misunderstandings 3. personal experience
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| What level of a food chain is most likely to bioaccumulate a persistent toxin? | top level, as substances pass up the food chain it accumulates at high, more toxic levels
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| If the number is higher, is it more or less lethal? | if the number is higher, it is less lethal
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| If the number is lower, is it more or less lethal? | if the number is lower, it is more lethal - it takes less to kill people
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