Evolution Is The Human Body Plan Essay

Evolution Is The Human Body Plan Essay

Length: 1235 words (3.5 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

Evolution is the driving force behind the variety of life we see today on this planet, as well as the remnants of life seen in fossil records, pushing the bounds of complexity and, through selection processes, creating countless new forms of life (Adami et al., 2000) all the while relying on two processes, diversification and extinction (Futuyama, 2004). Currently, between 10-14 million extant species are thought to live on Earth, yet this amounts to only around 1% of all species though to have arisen (Miller et al., 2012). All life forms found on Earth are all directly descended from one universal ancestor, the original life form which lived around 3.8 billion years ago, and any species since have arisen through descent with modification from this simple organism (Glansdorf et al., 2008). In this essay, I will evaluate whether or not evolution is deterministic and whether the human body plan was destined to evolve as it did when it did. I will also test the assertion by Stephen Jay Gould that if the “tape of life” were to be rewound, then evolution would have taken a vastly different pathway, leading to a very different array of species populating the planet. This is a stochastic mode of evolution, where an ideal body plan does not exist for evolution to ultimately always drive towards, and that the biodiversity seen currently exists merely through chance. To decide whether evolution is stochastic or deterministic, I will use examples from nature where distantly related organisms have developed shared characteristics, and also examine ways in which evolution is not a perfect process.

Throughout all of the Linnaean kingdoms, there is a vast library of striking similarities found between species which are only distantly related ...


... middle of paper ...


... skies come from the Wing-Assisted Incline Running Hypothesis. The Wing-Assisted Incline Running hypothesis is an adaptation of the cursorial model, which suggests that flight came from the gradual improvement forelimbs to aid of small jumps, which over time developed into full blown flight, and instead predicts that the use of forelimb propulsion to help the terrestrial dinosaur run up steep inclines gradually led to the development and strengthening of the forelimbs, to create wing like structures which facilitated flight (Nudds et al., 2009). Gradually, the pentadactyl bone system has been lost over time, being scaled down to just three bones, which anchor the primary flight feathers, while the humerus, radius and ulna provide the main structure to the wing (Vazquez, 1994), unlike bats and pterosaurs where a lot of the membrane support comes from elongated finger.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Essay on Evolution of the Human Brain

- The purpose of this paper to examine the evolution of the human brain that distinguishes them from other species based on the traits that humans possess: such as language, emotional complexity and consciousness. The significance of traits are due to adaptations in humans to promote the survival of our ancestors. Professor Hamilton (2012) discusses that the evolution of the human brain starts with the idea of the Triune brain, proposed by MacLean, whereby the human brain is made up of three parts: Reptilian, Paleo-mammalian, and Neo-mammalian....   [tags: Anatomy, Human Brain]

Better Essays
891 words (2.5 pages)

Evolution And Creation Of The Earth Essay

- How do you believe the Earth was created. There are two theories believed to be based on the creation of the Earth, evolution and creation. Evolution is the procedure by which various types of living creatures created and differentiated from before structures amid the historical backdrop of the Earth. Creationism is the conviction that life and the universe was made by a heavenly being, a transcendent, kindhearted God. The evolution hypothesis holds that living life forms that don 't adjust to their surroundings neglect to survive....   [tags: Evolution, DNA, Life, Organism]

Better Essays
1871 words (5.3 pages)

The Evolution of the Human Brain Essays

- The Evolution of the Human Brain Although my previous two papers concerned the interplay between neurobiology and genetics, I have not quite worked the issue out to my satisfaction nor to the depth which I think the topic warrants. Therefore, I will again tackle this complex set of biological questions pertaining to the ways in which our genes shape our brains. My first paper dealt with the nature-nurture debate and its relation to the brain-behavior problem raised in class. Then, in the second paper, I moved on to a narrower issue in neurogenetics; I wrote about Fragile X Syndrome and the ways in which a specific genetic mutation can drastically change behavioral output....   [tags: Biology Essays Research Papers]

Free Essays
2225 words (6.4 pages)

Is The Bible Compatible With The Theory Of Evolution? Essay

- Is the Bible compatible with The Theory of Evolution. Is it possible that God used evolution to make man from the animals. Did God direct the development of the bacteria, transforming them into fish, and then reptiles and mammals, to get finally a species of apes into humans. There are scientists and religious leaders who claim to believe in the theory of evolution and the teachings of the Bible, and claim that the biblical account of creation is symbolic. It could be that you wonder if the theory that human beings evolved from animals is compatible with God 's Word....   [tags: Jesus, New Testament, Christianity, Bible]

Better Essays
2029 words (5.8 pages)

Essay on The Evolution of Management Practices and Theories

- 1.0 Introduction With the rapid change of the world, thought of management, theory and practise keeps on changing. It has been transformed through innovation. Taking into consideration the uncertainty surrounding the construction industry, it is essential paying attention to how people work within an organisation that has set goals that needs to be achieved. To be able to achieve these objectives, it is necessary to understand management relating issues such as culture, motivation, leadership and issues relating like coordinating, planning and controlling....   [tags: business]

Better Essays
2309 words (6.6 pages)

Essay on The Evolution of Man

- The Evolution of Man The evolution of man is an area of study that will never fully be understood, however, evidence has been accumulated to allow us to paste together a picture of what happened in the beginning of time. It allows us to gather an idea of how man progressed to exist in the state in which we see him now. We can see that the evolution of man was directly influenced by his environment. Man’s intellectual development directly effected the physical changes that we see. It is apparent through observation that the environmental changes also induced some of the physical changes that man underwent....   [tags: Science Technological Environmental Essays]

Better Essays
1795 words (5.1 pages)

Essay Evolution Of Home Economics And The Science Of Nutrition

- The formal study and science of the nutrition of food is relatively new in the United States, originating alongside the more general department of Home Economics at the turn of the twentieth century. The changing social and cultural environments throughout the 1900s in the United States shaped the department of Home Economics and the interest in food nutrition until the two eventually became disengaged. Researchers, health experts and government agencies still study nutrition today, but interest in the field of Home Economics has waned....   [tags: Nutrition, Food, Health, United States]

Better Essays
1159 words (3.3 pages)

Evolution through Natural Selection Essay

- Children often play a game called telephone, where one child whispers a statement into another child's ear, and the statement is passed on to other children; at the end of the game the last child will repeat the statement that was told to him or her. The majority of the time, the statement said would be completely different than the original one. This is an example of evolution through natural selection; where somewhere along the life span of the statement, it was modified, and the modified statement was passed on to form a new statement....   [tags: Natural Selection Essays]

Free Essays
500 words (1.4 pages)

The Evolution of Auschwitz Essay

- A Polish prisoner in Auschwitz, Pavel Stemin, stated, “Death, death, death. Death at night, death in the morning, death in the afternoon. Death. We lived with death. How could a human feel?” (“The History”). Contraction camps played a huge role in the Nazi’s plan to slaughter the Jewish people, and throughout the holocaust they succeeded in killing approximately two-thirds of the Jews in Europe (“Concentration Camp”). It’s been estimated that 1.1 million to 1.5 million people were murdered at the Nazi concentration camp called Auschwitz (“1945: Liberated”)....   [tags: polish prisoner, torture, concentration camps]

Better Essays
1479 words (4.2 pages)

The Effects of Aristotelian Teleological Thought on Darwin's Mechanistic Views of Evolution

- The Effects of Aristotelian Teleological Thought on Darwin's Mechanistic Views of Evolution The need to understand organisms has been a much sought goal of science since its birth as biology. History shows Aristotle and Charles Darwin as two of the most powerful biologists of all time. Aristotle's teleological method was supported widely for over 2,000 years. One scientist remarks that the Aristotelian teleology "has been the ghost, the unexplained mystery which has haunted biology through its whole history" (Ayala, 10)....   [tags: essays research papers]

Better Essays
2373 words (6.8 pages)