One of the most important principles of biology is the main idea of evolution. This theory states, “that all living organisms have evolved from a common ancestor through natural selection acting on hereditary variation” (Reece, 2011). Many people today, know humans have evolved from a common ancestor; but they do not recognize the importance of it. Everyone should be educated about how organisms evolved because humans have evolved throughout many centuries. Charles Darwin had many theories that incorporated the main principle of biology, natural selection and evolution. Darwin explained natural selection as an evolutionary change where organisms that become more adapted to their environment will survive better than those who do not (Natural, 2004). Through evolution and natural selection many species, including humans, are here today.
Charles Darwin founded the principle of natural selection, which describes how organisms that adapt better in an environment will survive better and produces more offspring (Natural, 2004). Darwin first noticed evolution after being on the Galápagos Islands; here, he noticed that geological separation played an important role on how organisms adapted and formed new species (College, 2009). When species live in a new environment, they adapt differently and eventually these organisms will change over time, which is known as evolution (College, 2009).
Darwin noticed that birds on a different Galapagos island also have similarities and differences. He believed that these birds were once the same species but because of evolution they became different species. He noticed, “the different species show different beak morphologies (size and shape) that are well suited for exploiting different food resourc...
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Charles Darwin contributed majorly to the evolutionary theory and was the first to consider the concept of natural selection. The evolutionary theory states that evolutionary change comes through the production of genetic variation in each generation and survival of individuals with different combinations of these characters. Individuals with characteristics which increase their probability of survival will have more opportunities to reproduce and their offspring will also benefit from the heritable, advantageous characteristic. So over time these variants will spread through the population. (S.Montgomery, 2009)
Evolution, also known as descent with modification, is a phrase Darwin used in proposing the evolution of Earth’s many species. Charles Darwin noticed that the descendants of ancestral species were different from the present day forms of species. Darwinism is a theory of biological evolution developed by Charles Darwin who was an English naturalist. He expounded the theory of evolution in his book of the Origin Species in 1859. He expresses that all types of organisms emerge and develop through natural selection, small, acquired traits that expands the individuals of capacity, survival, and reproduction. In this book, Darwin theorized that animals and plants evolve and develop with the aid of the creator through the process of natural selection.
Darwin has two theories on the key principles of theory of evolution. One is the natural selection, a species that attains characteristics that are adapted to their environments (Darwin, Charles). The other one is survival of the fittest, which is when an individual best adapts to their environment survive to reproduce, and their genes are passed to later generat...
Anyone with even a moderate background in science has heard of Charles Darwin and his theory of evolution. Since the publishing of his book On the Origin of Species by Means of Natural Selection in 1859, Darwin’s ideas have been debated by everyone from scientists to theologians to ordinary lay-people. Today, though there is still severe opposition, evolution is regarded as fact by most of the scientific community and Darwin’s book remains one of the most influential ever written.
It came to no surprise that when Darwin was given the option to sail to the Galapagos Islands he took it on, wanting to do some research on the animals that inhabited there. He found that some finches have different shaped beaks used for different ways of eating. He then started to wonder how one species of bird could have branched out and “evolved” into many different birds. Darwin’s thought was that the very first species of finch flew over each of the Galapagos Islands and somehow adapted to the different climates and environments.
The first principle of Darwin’s theory is that individuals vary in many heritable traits, and that no two individuals are exactly alike. He first noticed this during his observations of the different plant and animal species he collected from the Galapagos Islands. He learned that most of these species lived nowhere else in the world, although they resembled species from the mainland of South America.
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Darwin writes on how a species will adapt to its environment given enough time. When an animal gains a genetic edge over its competitors, be they of the same species or of another genus altogether, the animal has increased its chance of either procreation or adaptation. When this animal has this beneficial variance, the advantage becomes his and because of this, the trait is then passed on to the animals offspring.
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