Charles Darwin Accomplishments

Ovcr time, many scientist and people have tried to answer the question, where does everything come from? Charles Darwin was one of them. Darwin was an English naturalist, geologist and biologist who was born on 1809. From a young age Darwin was a very curious boy, which led him to not only observe, but analyze different species on different places and make conclusion about it. One of his greatest achievements was the development of a scientific theory which contributes to the idea of evolution, which can be best described as the process of change over time. He grew up on an environment where the view of the natural world around geologist and biologist was changing dramatically. Thanks to those changes of perspective, he was influenced by various

In addition, when Darwin was around twenty two years old he was invited to a five-year voyage. What no one knew, was that this voyage would later become one of the key experiences for the development of his ideas and thoughts about the natural life. During his voyage, Darwin developed the scientific theory of biological evolution, which explains how modern organisms evolved over long periods of time through descents with modifications from common ancestor (3). To understand this concept better, descent with modification is the fact that when parents have children, those children often look and behave slightly different than their parents. Additionally, the idea of a common ancestor is the idea that all living things are related because they descend from a common ancestor (6). However, Darwin did not only developed this theory but also came up with the idea of natural selection, and artificial

With this in mind, allele frequency is the number of times an allele occurs in a gene pool compared to the total number of alleles in that pool for the same gene. On the other hand, one can find many different types of traits on living things, one type of trait is the polygenic trait. A polygenic trait, is a trait controlled by two or more genes. In addition, for this type of traits, there are also different types of natural selection. The types of natural selection on polygenic traits are the following: 1. Directional selection, which happens when individuals at one end of the curve have higher fitness than individuals in the middle or at the other end. Two examples of this type of selection are birds and giraffes. First, on a certain population of finches, there are finches with bigger, thicker beaks which can feed more easily on larger, harder, thicker-shelled seeds. If the supply of small and medium-size seeds runs low, birds with larger beaks would have an easier time feeding. However, birds with small beaks would have a very hard time surviving. Therefore, future generations would have a greater beak size (3). Second, in an environment where a disease wipes out all the shrubbery that is low to the ground, directional