The subject of evolution is widely debated topic. However there is a wide variety of evidence that supports evolution. By studying the fossil record, comparative anatomy, genetics and natural selection scientists have been able to support Charles Darwin’s theory (evolution). This report will focus on evidence from the fossil record as well as genetics.
The fossil record is the collection of information that shows the occurrence and evolution of living organisms through geological time from fossils. A transitional fossil is the remains of an organism that is thought to be an evolutionary link between two distinct groups . This is suggested when the organism possesses characteristics that uniquely belong to different taxonomical groups, or when …show more content…
The DNA in living things is highly conserved. DNA has four bases that code for all differences in living things on Earth. Adenine, Cytosine, Guanine, and Thymine line up in a specific order and a group of three, or a codon, code for one of 20 amino acids found on Earth. The order of those amino acids determines what protein is made. Interestingly scientists have found that only four nitrogenous bases that make only 20 amino acids account for the genetic makeup of all living organisms. There are no known codes that contain the information needed for life to exist other than dna. This is strong evidence that all life evolved from a single ancestor. In the course of development from a zygote into an adult, the various embryonic stages of a organism are thought to represent the various ancestral stages of that species. In the development of frogs, the tadpole stage almost resembles a fish, indicating its fish ancestry. In birds, the chick at the time of hatching has sedimentary teeth, which are lost , indicating the …show more content…
Since the 1940,s, antimicrobial drugs, such as antibiotics, have been effectively used to cure patients with infectious diseases. Over time, however, many pathogens have evolved to resist the drugs that were designed to destroy them, making the products increasingly ineffective. This happens because the bacteria adapt to the environment due to natural selection. Then bacteria with the resistant genotype will reproduce and spread. Drug resistant pathogens are linked with the over prescription of antibiotics, as well as missing doses when taking antibiotics.[28] Inappropriate use of antibiotics has been linked to a number of causes, including people insisting antibiotics, doctors prescribing them because they do not have time to explain why they are not necessary, and doctors not knowing when to prescribe antibiotics or being too careful about prescribing them. At least one third of people believe that antibiotics are effective for the flu, and it is the most common reason antibiotics are prescribed even though they are ineffective against viruses. If we continue to overuse antibiotics, diseases that are currently treatable will become incurable and millions of people will die as a result of this. Society can prevent infections from becoming incurable in the future by not overusing antibiotics, finishing antibiotics even if the infection is gone and not using
The fossil record is the collection of information that shows the occurrence and evolution of living organisms through geological time from fossils. A transitional fossil is the remains of an organism that is thought to be an evolutionary link between two distinct groups . This is suggested when the organism possesses characteristics that uniquely belong to different taxonomical groups, or when …show more content…
The DNA in living things is highly conserved. DNA has four bases that code for all differences in living things on Earth. Adenine, Cytosine, Guanine, and Thymine line up in a specific order and a group of three, or a codon, code for one of 20 amino acids found on Earth. The order of those amino acids determines what protein is made. Interestingly scientists have found that only four nitrogenous bases that make only 20 amino acids account for the genetic makeup of all living organisms. There are no known codes that contain the information needed for life to exist other than dna. This is strong evidence that all life evolved from a single ancestor. In the course of development from a zygote into an adult, the various embryonic stages of a organism are thought to represent the various ancestral stages of that species. In the development of frogs, the tadpole stage almost resembles a fish, indicating its fish ancestry. In birds, the chick at the time of hatching has sedimentary teeth, which are lost , indicating the …show more content…
Since the 1940,s, antimicrobial drugs, such as antibiotics, have been effectively used to cure patients with infectious diseases. Over time, however, many pathogens have evolved to resist the drugs that were designed to destroy them, making the products increasingly ineffective. This happens because the bacteria adapt to the environment due to natural selection. Then bacteria with the resistant genotype will reproduce and spread. Drug resistant pathogens are linked with the over prescription of antibiotics, as well as missing doses when taking antibiotics.[28] Inappropriate use of antibiotics has been linked to a number of causes, including people insisting antibiotics, doctors prescribing them because they do not have time to explain why they are not necessary, and doctors not knowing when to prescribe antibiotics or being too careful about prescribing them. At least one third of people believe that antibiotics are effective for the flu, and it is the most common reason antibiotics are prescribed even though they are ineffective against viruses. If we continue to overuse antibiotics, diseases that are currently treatable will become incurable and millions of people will die as a result of this. Society can prevent infections from becoming incurable in the future by not overusing antibiotics, finishing antibiotics even if the infection is gone and not using