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Darwin's Theory Of Natural Selection

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Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in heritable traits of a population over time. Charles Darwin popularized the term "natural selection", and compared it with artificial selection.
1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He well-defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved. The concept was simple but powerful: humans best altered to their environments are more likely to survive and duplicate. As long as there is some variation between them and that variation is genetic …show more content…

I think it would be a most extraordinary fact if no variation ever had happened useful to each being's own welfare. In the same way as so many variations have occurred useful to man. But if variations useful to any organic being do occur, certainly individuals thus characterized will have the best chance of being preserved in the struggle for life, and from the strong principle of inheritance they will tend to produce offspring similarly characterized. This principle of preservation. (Maynard Smith, 1993) …show more content…

Genetic is expressed in many physical characteristics namely from eye colour, hair colour, skin complexion. These characteristics of human beings vary from different parts of the world. (Raymond Scupin & Christopher R. DeCorse, 2016:121)
Physical environment is an important factor in human variation. Physical environment may affect the person during his or her lifetime. The Physical environment influence how a group of people live and do their day-to-day activities. Another feature that makes people differ is their culture. This includes the way people talk, dress and what they eat. Culture even goes deeper than that it involves morals, values and customs. (Raymond Scupin & Christopher R. DeCorse, 2016:122).
With the three causes of human variation that I used (genetic factors, physical environment factors and cultural factors) I personally think culture has the greatest effect on human variation because people of a certain culture wear a type of way and you can recognize them from a distance without having a conversation with them or them telling you more about themselves. Culture may influence human genetic variation through religion, marriage, social organization.

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The majority of what makes up an organism is its genetic variation, but it is impossible to not suffer from changes due to the environment, some of these changes may be unnoticeable, but some can determine life and death. This is caused by something known as epigenetics, which is the modification of gene expression, rather than the sequence of genes themselves. A few of the disease found in humans that are dependent on the environment of the human are type two diabetes, alcoholism, some forms of cancer, schizophrenia, heart disease, along with many others. A person's personality is also determined by the society around them. It is only natural for the human mind to accept the folkways, mores, and taboos of the people around them and thus strengthen these norms.

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For Natural Selection to occur there must be some level of variation among the population that is heritable.

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In Neil Shubin’s book Your Inner Fish the genetic blueprint of human life, and all animal life, is revealed. The book’s main message is that everything, every feature humans or any other animal can have, is part of the same genetic history. The features and mechanisms that make up our bodies have evolved through “descent with modification” over time. Slight changes to cells, bones, and genes have all culminated into new species that while different still carry reminders of their evolutionary past. When most learn of evolution they learn humans and primates evolved from a common ancestor, and they stop there, they do not look any further.

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The ways our culture inform the world are very diverse and bold. Because all cultures are important to each and every one of us, thus our culture heavily influences each and everyone and every culture around us. Culture is all around us no matter where you go, it will always with you. It has a massive impact on each and every one of us. Our culture influences our view of almost everything we see and hear in the world.

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Topic 1 Discuss some of the ways that Darwin’s theory of natural selection was transformative to his society. Natural selection is “the process whereby organisms better adapted to their environment tend to survive and produce more offspring.” (What is natural selection, n.d.) In other words the strongest genes are passed to their offspring.

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Culture largely impacts the way people see others and the world because of their perspective on things based on the way they were raised up. For example, sagging. sagging is viewed by other cultures as uncivilized and distasteful, but the majority of african american teenagers think that it is acceptable because that is a part of their cultural inheritance.

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Even more so, a variation comes from an original trait that adapts to become a new trait. The reason certain species can or cannot do something is based on this idea of use or disuse of a variation to

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To sum up, the people you surround yourself with, the part of the world you live in impact your

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Culture impacted my personality and how I act and feel. To me, culture is a very important part of every person’s life. Culture can influence my different types of values. My mom practices Mormon and my dad is Catholic and because of this circumstance, I grew up with both beliefs. In my family on Christmas, we celebrate the Birth of Christ.

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Darwin’s theory says that humans descend from one common ancestor, and physiologically change due to the clime and environmental changes, challenging the idea that human differences are permanent.2 (An instant where someone supported Darwin before 1950) The idea is supported in 1950 when UNESCO published “The Statement on Race,” which had a goal to “synthesize a clear statement about the science of “race,” rejecting the previous notion that race was based upon biological differences. UNESCO affirmed that not only was Cuvier’s idea of scientific racism unjustifiable, but that the human race is monogenetic, meaning that mankind has one common ancestor.

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Introduction The theory of evolution has been discussed, evaluated, and researched many times since the theory was first brought to light. Darwin’s theory of evolution is said to be divided into two parts, common decent and natural selection (Bouzat, 2014). Many research papers agreeing with Darwin’s theory comment on the diversity of a species and how they have descended from one common ancestor. Natural selection is a process in which species that are better adapted to the environment tend to survive and reproduce (Dictonary.com).

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Charles Darwin became famous for his theory of natural selection. This theory suggests that a change in heritability traits takes place in a population over time. This is due to random mutations that occur in the genome of an individual organism, and offspring can inherit these mutations. This was defined as the key to evolution, this is because random mutations arise in the genome of an individual. Until the 19th century, the prevailing view in western societies was that differences between individuals of species were uninteresting departures from their platonic ideals of created kinds.

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