Homology And Analogy Essay: Animal Form And Function Examples Of Analogy And Homology Of Morphological And Behavioural Traits.

1724 words - 7 pages

Similarities of physiology and behaviour due to homology - share common ancestor with that trait or analogy - not due to common ancestor but common due to convergent evoution.Improvement suggestions: the behavioural homology of crocodiles and birds may be flawed. Also the analogy between fish and mammals could be wrong as the post-anal tail of quadrupedal mammals and fish is a common trait.Homology and Analogy EssayAnimal Form and FunctionHomology and AnalogyMany species share similarities in their structural apperance and behaviour but this can be due to different reasons. A characteristic or behaviour is said to be homologous if it is shared by two or more species and was present in their common ancestor. Homologous features arise from adaptive radiation whereby many species derive from a single or few ancestor species to adapt to different environmental conditions and modes of life. By descent with modification species adapt to new environments by modifying existing charcteristics. Homologous structures are often specialized in different organisms, for example the pentadactyl limbs of tetrapods contain the same basic structure but the bones have been adapted to each organisms way of life. This is demonstrated by the elongated digits of bats to support their wings, and the the grasping hand of a monkey adapted for climbing. Charateristics or behaviours that are similar in two or more species but not present in their common ancestor are said to be analogous. Analogous features arise through convergent evolution as they have developed separatley in unrelated taxonomic groups as a result of a similar way of life, for example the wings of birds and insects as they do not share a common ancestor with wings. The theory of evolution suggests we would expect a higher number of shared homolgies for closely related species, and decreasing number as the species become less related (Campbell & Reece, 2005; Purves et al., 2001;http://people.westminstercollege.edu/faculty/jrogers/II%20homology.ppt).Examples of Morphological Analogy and HomologyFish and MammalsAn example of homology between fish and mammals is the presence of a jaw, providing the ability to bite and chew, which assist in food capture and aid digestion. The Humpback anglerfish, and the Lion both possess specialised jaws, both groups are descended from a common ancestor that had a jaw, and so this trait is described as homologous (Purves et al. 2001;http://io.uwinnipeg.ca/~simmons/16cm05/1116/chordate.html, http://cal.man.ac.uk/student_projects/2003/mnzo0mlk/lecture5.html).An example of analogy between fish and mammals is the presence of a flattened tail for propulsion in water. The tails are described as analogous as the whales have evolved from terrestrial quadrupedal mammals and adapted their tails from the hindlimbs of their ancestors. The hind limbs were gradually lost as their skeletons adapted back to life in water. As the evidence suggests whales have evolved from land animals this...

Find Another Essay On Homology and Analogy Essay: Animal Form and Function - Examples of Analogy and Homology of Morphological and Behavioural traits.

From Adaptation to Analogy: Comparing and Understanding Artistic Differences between the Film and Original Versions of Fight Club.

1110 words - 5 pages identifies three types of book to move transformations. His categories are: “transposition in which a novel is given directly on the screen; commentary, in which an original is taken and either purposely or inadvertently altered in some respect; and analogy, a fairly considerable departure for the sake of making another work of art” (Leitch, 275). Previously mentioned aesthetic changes move Fincher’s work from transposition to commentary. His choice of

Historical Analogy QUESTION: Describe how the Democratic Party has changed and transformed in the Southern region of America

1174 words - 5 pages Democrats once maintained the support of White Southerners by backing Jim Crow laws and supporting racialHistorical Analogy 2segregation, but today, the majority of African Americans vote for the Democratic ticket (Aldrich, 1995).African Americans began to shift from the Republican Party to the Democratic Party in the 1940s, despite the Democrats opposition to 14th Amendment, which granted citizenship to “all persons born or naturalized in the

The following is a mythical analysis of "The Bear" by Anton Chekhov. The paper encompasses the author's background and the mythical content and/or analogy in his story, The Bear.

955 words - 4 pages family while he studied for his medical degree in Moscow. Under this strain he contracted tuberculosis, which ravaged him all his life (Anton).Early in his career, he mastered the form of the one-act and produced several masterpieces to include The Bear. Chekhov's plays have become famous worldwide. Noted for his realistic dialogue and keen insights into human nature, he is considered the greatest Russian storyteller and dramatist of modern times (2

Role and Function of Law

797 words - 3 pages Role and Function of LawRole and Function of LawThis paper will be discussing how the roles and functions of law pertaining to businesses and our society as it today. Laws actually play a huge role in our business and in our society lives. They help to regulate our social behaviors and in turn we get an efficient running society. Also, laws help with ethical expectations and standards by providing much needed rules. Such as rules of conduct, the

Principles And Function Of Management

1655 words - 7 pages Out line: This assessment will look at the Principles and Functions of Management. Which mentions there is a difference between what a manager should do and what they actually do? According to many writers observation. Subsequently, I will comment by usage of my own knowledge of management theories and concepts. Further more, it is based on an experience and press stuffs. Due to main discussions, my assessment can be divided into following

The Heroic Traits Of JFK And Beowulf

961 words - 4 pages and Kennedy can both be noted for various brave act throughout their lives.Beowulf was looked upon as the greatest warrior of his people, the Storm-Geats. His gratitude led him to help the King of Storm-Danes and his people. Beowulf was asked to rid the Storm-Daness of Grendal, and evil monster. Grendel had been attacking the Mead Hall, which the king had built. However, his evil deeds were unstoppable. Beowulf was put in command of killing

An exposition of Plato's analogy of the cave.

778 words - 3 pages Plato was a philosopher living in Athens during the Hellenistic period. He was an aristocrat, but did not venture into politics, instead having a love of philosophy instilled in him by his tutor, Socrates. Plato thought and taught philosophy his whole life, and unlike Socrates wrote his ideas down in the form of dialogues. One such work is the Republic, in which the analogy of the cave is expounded.In the analogy of the cave, Plato describes

Analogy of Time - what we think of time.

555 words - 2 pages It is high noon. A young boy walks swiftly across his schools playground, headed for the backdoor entrance. Compared to other of his age, the boy is quite the looker. As the boy is about to enter the building, he takes a comb out of his pocket and fixes his blonde, wavy hair so that his teacher is not given the chance to scold him for being untidy. Once inside his classroom, the boy takes a seat at the back by the window. The teacher enters and

Siddhartha Essay: Use of Form, Symbolism, and Conflict

1284 words - 5 pages Use of Form, Symbolism, and Conflict in Siddhartha           Hermann Hesse uses the literary devices of form, symbolism, and conflict to develop his novel, Siddhartha.   Hermann Hesse's novel, Siddhartha, "is a novel of classical symmetry, a perfection achieved" (Hermann Hesse 25).  It tells the story of a young man who sets out to find his true self.  Throughout his journey, Siddhartha converts to various religions, searching for

Communication and collaboration of different learning styles and personality traits

955 words - 4 pages projects or writing lists. Now that learning styles have been discussed and how they can communicate effectively, let us discuss personality types and how they may be collaborated as well.Personality types are characteristics of behavior that one person has, that person may be a thinker, a giver or an organizer. These traits together bring different positive approaches to a team. The thinker is analytical and a problem solver, they are abstract

Essay: Subject, Form and Content.

580 words - 2 pages While flipping through the pages of a magazine, one page immediately caught my eye. ?This is the image that I want to discuss, its perfect.? I said to myself. It is clearly a work of art. While critiquing this image, I would say that it gives a sense or Unity/Harmony w/variety: emphasis on both unity and harmony. The lines, shapes, value, texture, color and form give it a sense of unity and harmony.In this picture, line indefinitely protrudes

Similar Essays

The Analogy For Napoleon: George Orwell's Animal Farm

654 words - 3 pages . Old Major tried so hard to make them see the sense but the pigs wanted power and in the end they got it. One of the sayings created for the sheep is "four legs good two legs bad". Napoleon deals with the hens rebellion by taking their rations away and saying that any animal who feeds the hens will die with them. Through the book 'Animal farm', George Orwell in a way can 'hint' his criticism of something that he thinks is wrong. They would become

Abortion Rights And The Acorn Analogy

1269 words - 5 pages Introduction This essay will examine an often discussed pro-choice analogy. It will consider to what extent the abortion issue is still controversial if the terms of this analogy are accepted as true. This essay will first discuss the premises of the analogy in question. Then it will consider counter-arguments to the analogy. The objective of this paper is to make a determination on whether the controversial nature of the issue of

Analogy Of Wynnere And Wastoure In The Middle Of The 14th Century

2359 words - 9 pages not doing the repairs and have an excuse for not completing those repairs. He repeats the same argument he has in all of the other examples which he has given; Winner will not invest into anything and therefore can not help the poor. He only cares about hoarding his money.With the arguments made the king is called in to decide once and for all who will win the debate between Winner and Waster. The King’s judgment suggests that he to believe

Form And Function Of The Colosseum

1932 words - 8 pages perceived that strong roman concrete vaults seem to symbolize the strong Imperial Rome. With all the evidences that have been presented, it is thus clearly show that the form and function of the Colosseum are indeed inextricably linked. ( 302 words) Part 2: Essay Question: Why is that the Romans, as Thomas Wiedemann says, “did not see what went on in the amphitheatre as something wicked” (Resource Book 1