1. Skin cancer can be caused by many things; the first is getting too much exposure to sun. The UV rays come in contact with your skin and reaction occurs which makes your skin tan or burn. The UV rays from just one sunburn can damage your skin and cause you to become more at risk of getting skin cancer. Another cause of skin cancer could be genetics‚ if your someone in your family had skin cancer the mutated gene could possibly get passed down to you and you could have a higher risk of developing
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1. What are the causes of skin cancer? Exposure to abnormally high frequencies of light can potentially alter the DNA of a cell and turn it cancerous‚ the resulting cancerous cells are known as skin cancer. The most common cause is ultraviolet light emitted by the sun although it has been known to be caused by tanning booths‚ unusually high levels of x-rays‚ exposure to some chemicals and in rare cases the abnormal genes that cause skin cancer can be inherited by children from their parents.
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Jade Gertsen Skin Evolution Essay Human skin pigmentation is the product of two clines produced by natural selection to adjust levels of constitutive pigmentation to levels of UV radiation (UVR). One cline was generated by high UVR near the equator and led to the evolution of dark‚ photo protective‚ melanin-rich pigmentation. The other was produced by the requirement for UVB photons to sustain cutaneous photosynthesis of vitamin D3 in low-UVB environments‚ and resulted in the evolution of pigmented
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NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE The Evolution of Human Skin Color by Annie Prud’homme-Généreux Life Sciences Quest University‚ Canada Part I Skin Cancer “Stop it!” called Tatiana‚ playfully. Her boyfriend‚ Zach‚ was inspecting her skin very carefully. “Look‚” he answered her‚ his voice taking on a more serious tone. “Today a woman walked into the clinic for her annual physical. Everything about her seemed ne. She leads a balanced lifestyle‚ she eats well‚ she exercises:
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Evolution of Skin Pigmentation due to UV Levels and Genes Introduction Identification of a person has long been related to the color of their skin‚ as skin color is the defining measure of races. There are multiple variations in skin color throughout the globe‚ with the differences in outward appearance ranging from dark to light. But what exactly has caused this to occur? What is the underlying event that has led to so much variation in the pigmentation of a person? What selection pressures
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Human Evolution Who we are as a species‚ and where we came from; make up the basis of a fantastic story‚ spanning more than 4 million years. The search for the origins of humanity will be a story of bones and the tales they tell. It’s a story that begins in Africa‚ where our ancestors first stood up.Over millions of years they continued to evolve and eventually spread out across the globe. Some species adapted to the changing world‚ while others went extinct. Today only a single species
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Cause of Evolution Human desire is unlimited‚ everyone also will hold a laziness attitude‚ so to own desires‚ human need to work harder to satisfy their own‚ therefore society in constant evolution! Sigmund Freud once said that human evolution is mainly has two conditions as the driving force‚ one is sex and another is eager to greatness. However‚ this is unscientific if we observed from another perspective. Through understanding and awareness the history of Europe and Asia‚ we can assume
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The story of Human Evolution “A Brief Overview” By Swati yadav The Argument in Syllogisms Western Religion Premise 1 - God created humanity. Premise 2 - Humanity did not evolve. Conclusion 3 - Therefore‚ there will be no evidence of human evolution. OneWorldInsight.com Science Premise 1 - All life forms on earth go through the process of evolution. Premise 2 - Humanity is a life form on earth. Conclusion 3 - Therefore‚ there will be evidence of human evolution. Age of the Earth – 5 billion
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Human evolution is the evolutionary process leading up to the appearance of modern humans. While it began with the last common ancestor of all life‚ the topic usually covers only the evolutionary history of primates‚ in particular the genus Homo‚ and the emergence of Homo sapiens as a distinct species of hominids (or "great apes"). The study of human evolution involves many scientific disciplines‚ including physical anthropology‚ primatology‚ archaeology‚ linguistics‚ evolutionary psychology‚ embryology
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Human Evolution During the evolution process from ape to man‚ it could be concluded that the biped and upright walking posture was a requirement for the emergence of human beings while the true difference between human and ape was the ability to make and use tools. Besides‚ the perfection of upright walking was the result of adapting the natural environment and the motivation for physical evolution of human. This posture positioned the head from the front to the top of body‚
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