• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13

Evolution. This issue report will aim to address the Theory of Evolution by explaining key concepts and ideas in an informative and unbiased way. It will set forth to describe the theory, by highlighting its main components,

Extracts from this document...


Evolution Candidate Number: **** [An insight into the controversial issue of evolution.] Deadline: 24th April '09 Edexcel GCE Biology Introduction This issue report will aim to address the Theory of Evolution by explaining key concepts and ideas in an informative and unbiased way. It will set forth to describe the theory, by highlighting its main components, and also touching upon significant moments in time that shaped the modern Theory. I will be identifying the problem/s biologists have in regard to this issue, and the measures they are taking to produce an effective solution. Problem The problem biologists are struggling to solve is the full establishment of the Theory of Evolution as an accepted fact throughout the global population. And that is why the scientific community is determined to enlighten everyone with their own understanding. On a near global scale, the Theory of Evolution has become a default ideology that defines the existence of life. It is defined as scientific and logical, and it has become extremely dominant due to the many biologists who agree with it because of its simplicity, in terms of understanding the basic concept. It is taught as a standard in educational facilities, and therefore cannot be disputed. The problem with this issue is that while calling it a 'Theory', the majority of proponents consider it as solid fact. ...read more.


and micropalaeontology: "Study of generally microscopic fossils, regardless of the group to which they belong." [(8)] Why do scientists use palaeontology? They use it because it helps draw links between early and later generations of species. It's actually a fundamental process that made Figure 1 and 2 true. (See Pg 3 and 4) Scientist Georges Cuvier (1769-1832) attempted to explain fossils. "He was able to show, sometimes from the merest fragments of bones, the relationships between living organisms and a fossil of an extinct form of life - part of the basis of modern palaeontology." [(9)] This is evident that palaeontology is a vital branch in science. This is also a fairly reliable process because palaeontology analyses fossils which are reliable due to the fact that they don't change in morphology (physical/phenotypical feature) and are preserved imprint of the fossilised species. If you clearly look at Figure 3, you can see that it closely resembles the modern day angler fish, and even though this fossil was estimated to have been alive some 150 million years ago, there are similar morphological similarities such as visible fish scales, bones and dorsal fin. * Molecular phylogenetics is described as the "analysis of structures of many different chemicals and genes to identify the inter-relationships between groups of organisms." ...read more.


[(15)] Anatomical adaptations can include emphasised features such as cactus spines. They enable it to defend itself against predators that may be in search of water in the desert. Its small surface area doesn't allow a lot of water to escape the plant. This shows that the plant has a design that it is well suited to its environment. Physiological adaptations refer to the biochemical pathways; the mechanism explaining why the body works in a particular way. For example, "diving mammals can stay under water for far longer than non-diving mammals without drowning." [(15)] Behavioural adaptations refer to attitudes and reactions to the environment. For example, wolves travel in packs to effectively make their hunting more efficient. The wolves co-ordinate their attacks, so that they can take down larger prey - something a lone wolf could never achieve. This can be argued that a design such as this can only be accomplished through successful and beneficial evolutionary traits being passed on from earlier ancestors. This is a key idea in natural selection, where survival of the fittest states that for a successful species to emerge, there must be beneficial genes passed on from earlier ascendants. Coming full circle, we can see that evolution can be explored in many ways. What scientists need to do is to further their research so that they in the future, perhaps, a unified theory may prevail. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Genetics, Evolution & Biodiversity section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Here's what a teacher thought of this essay

4 star(s)

This is a well researched and written report .
1. It is well introduced and uses appropriate methods to indicate the information sources.
2. The use of images is excellent.
3. The report is missing a complete conclusion.
4. Be careful with some statements and claims as they show bias.
5. Do not just use websites to research for report, use textbooks or, ideally, scientific papers.

Marked by teacher Luke Smithen 23/07/2013

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Genetics, Evolution & Biodiversity essays

  1. Marked by a teacher

    Should Gene therapy be allowed to prevent cystic fibrosis?

    3 star(s)

    However many disadvantages gene therapy might carry it is not easy to ignore the fact that it can cure somebody with a diseases and allow him or her to live a normal and healthy life.

  2. Marked by a teacher

    The daphnia lab report

    3 star(s)

    Then with the results of the experiment, we can reference it to humans. Daphnia are a great model for this experiment because they can be easily handled and manipulated. Daphnia are also visible under the microscope and it is easier to see their heart beat.

  1. Edexcel Level 3 Extended Project - Should Embyonic Stem Cell Research be applied to ...

    Opinion polls showed a majority in support of lifting the ban, although many religious conservatives and The Family Research Council were none too happy, slamming the new bill saying it allowed scientists to make up their own guidelines for the research.

  2. A Separate Peace by John Knowles - summary of theme and narrative

    " Then the though struck me, Finny had deliberately been out to wreck my studies." When a guy tells you, you are his best pal, a true friend would reply by giving some sort of nod or sign of the mutual feeling, but Gene never did that.

  1. Mean temperatures are rising in many parts of the world. The resulting temperatures may ...

    However, whilst the above mentioned example is a somewhat extreme example, the vast majority of organisms are well capable of coping with changes to environmental temperature, by usually relying on feedback mechanisms in order to process and produce the necessary response to maintain certain condition.

  2. Phylogenetic tree - in 1866, Ernst Haeckel introduced the phylogenetic tree, or the tree ...

    * A species ability to adapt is the essence of evolution. Overall, based on the Theory of Evolution, all species these days are evolved from only on species which is the root in the Tree of Life. Throughout over time, this ancestor evolved to many, many species with different time and environment conditions.

  1. In this paper I will be studying chromosome 11 of the human genome.

    (Shuman, 10 April 2003) Beckwith-Wiedemann Syndrome is found in approximately 1 out of 13, 700 cases across the world. However, this number is probably slightly low as there are many milder cases that often go undiagnosed. In children born with BWS, there is a 20% mortality rate due to premature birth.

  2. Discuss the role of chance in evolution

    There are certain factors that can affect the influence these two processes have, such as the population size and the fitness difference between individuals in the population however the debate is still open to interpretation. Evolution has been shaped by more than just mutations.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work