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The theory that species adapt to their environment as a population over time.

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1-Disgust is felt stronger towards something heavily disease ridden
2-Disgust is similar across each culture
3-Disgust is more pronounce in females
4-As a person ages and their reproductive potential decreases so does their disgust
5-Disgust is stronger with strangers as they may carry more harmful diseases than close relatives.

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The theory that a species changes over time as mutations create different traits that might perform better in the gene pool, thus get passed on to offspring more often.

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The theory of evolution explains how organisms change and adapt to their environment over a long period of time.

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Disgust can play a big part in evolution and natural selection because disgust can help us survive and stay away from things that could get us sick. the 5 conditions for disgust are that disgust must be felt more strongly for something that is likely to be disease ridden. Disgust should operate in similar ways in cultures. disgust is more pronounced in females. disgust can weaken with age. And disgust should be stronger with strangers

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The theory by which organisms change from generation to generation due to parent inheritance.

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1) Disgust is felt stronger in women than in males
2) Disgust is similar in different places and communities
3) Disgust is less intense in the elderly
4) Disgust is stronger in more disease  ridden objects than in less disease ridden objects
5) Disgust is stronger towards strangers than loved ones

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1. Disgust is felt more strongly for something that is heavily disease ridden
2. Disgust should operate in a similar way across cultures
3. Disgust should be more intense in females
4. Disgust should weaken with the elderly.
5. Disgust should be stronger when in contact with strangers.

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Curtis, Auger, and Rabie set out to find if disgust was an evolutionary product or if it was a chance result. They found that the 5 evolutionary basis for disgust was met in many different cultures around the world.

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The study by Curtis, Aunger, and Rabie was done to see if the behavior of disgust can be explained by evolution. They found that each of the 5 conditions of disgust are relevant. People said the brown stain was more disgustng than blue, disgust was constant across countries, females rated things more disgusting, sensitivity to disgust decresed with age, and people were less likely to share a tooth brush with a stranger.

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We can only speculate and assume what the environment was like that caused a species to evolved. Therefore we cannot be completely sure.

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1) We can't be sure that disgust is the product of evolution as we can't test cause and effect.
2) If it did evolve in humans it would have evolved in the past which we can't study.

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One problem in the theory of evolution is that it is not proven. It is only a theory therefore we are assuming that evolution happened. Another problem is that explanations for behavior are difficult to test. These can relate to behavior because we cannot prove it effects evolution if we do not know for sure that it is real. also behaviors such as disgust are hard to test.

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The theory of evolution explains how organisms adapt to the  environment over time

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Process by which organisms change from generation as a result of characteristics inherited from parents.

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Process by which organisms change from generation as a result of characteristics inherited from parents.

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1. Disgust must be felt more strongly for something that’s heavily disease ridden as opposed to something less disease ridden

2. Disgust should operate in similar ways across cultures

3. Disgust should be more pronounced in females

4. Disgust should weaken as a person’s reproductive potential declines with age

5. Disgust should be stronger in contact with strangers than close relatives

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Wanted to see if disgust can be explained by evolution. They found that certain things, such as the towel with the blue stain, were less disgusting consistently across cultures. It was also found that females rated disgusting things higher and older people weren't as sensitive to disgusting things. This study shows how all 5 conditions for the evolutionary explanation of disgust were met.

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How an organism adapts and changes overtime due to characteristics inherited from parents

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1) Disgust must be felt more strongly for something that is heavily disease ridden as oppose to something less disease ridden.
2) Disgust is similar across cultures.
3) Disgust is across gender but more prominently for women.
4) Disgust weakens with old people.
5) Disgust is stronger when around strangers.

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The theory of evolution states organisms change from generation to generation as a result of characteristics inherited from the parent

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There are five conditions scientists believe must be met to show disgust is a behavior evolved as protection from risk of disease.  These 5 conditions include
1. Disgust must be felt more strongly for something heavily disease ridden
2. Disgust should operate similarly globally
3. Disgust should be more pronounced in females
4. Disgust should weaken with age
5.Disgust should be stronger w/ strangers than relatives