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Biology Extended Essay Topics That You Can Use


Every student working towards a qualification with the International Baccalaureate should know that there is enormous support for them during their studies. The resources available are outstanding because each school which undertakes to offer the International Baccalaureate as part of their curriculum, does so knowing the value of the qualification. It is recognized around the world. The curriculum of the IB is both detailed and expansive.

When it comes to writing extended essays as part of your IB studies, it is vitally important that you discuss the topic you wish to write about with your supervisor beforehand. In most cases your supervisor will be your teacher. Remember that an extended essay can have a word count up to 4000 words. It is a significant piece of work. As a student you must be able to demonstrate appropriate research and your ability to communicate ideas and develop an argument. But on to the choice of topic.

Extended essay topics in biology


  • How does the aging process impact a person's eyesight and in particular the human retina?
  • As is the case with extended essays, there is a question as part of the topic. You are expected to answer the question in much detail. The better resources you choose to support your argument the greater the chance of you receiving an outstanding mark for your extended essay.

  • How does exercise and the physiology of exercise in particular relate to the overall fitness and good health of participants?
  • In all science and in this case biology extended essay topics, there is scope for a great deal of research with results and tables tabulating the experiments conducted.

  • How has the epidemic of obesity changed the biological structure of overweight people?
  • Here the amount of information for research purposes is truly staggering. By choosing a biology extended essay topic which is very much in the news, you give yourself the opportunity to seriously tackle the topic. One important warning however is that a topic which is too broad will not enable you to provide specific answers.

  • How has the incidence of food labelling changed the biology of products created by the food industry?
  • Extended essays which win high marks are often based on controversial subjects. If you can find a topic which lends itself to rigorous debate and, of course, write well on the subject, you may give yourself a clear advantage.



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