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Can you write an IB extended essay in Biology if you are taking IB Biology SL?<\/strong><\/p>\nYes. The IBO does not restrict EE subject choice to HL students only. However, if you are taking Biology SL, you will need to engage with biological concepts that may extend beyond your taught syllabus. The level of analysis expected by examiners does not change based on whether you study SL or HL, so SL students must invest additional preparation time to ensure their background knowledge is sufficient.<\/div>\n<\/div>\n
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How is an IB Biology extended essay different from the IA investigation?<\/strong><\/p>\nThe IA is a shorter, internally assessed investigation supervised by your teacher. The EE is an independent 4,000-word research paper marked externally by IBO. The EE demands more data, more sophisticated statistical analysis, a deeper literature review from peer-reviewed sources, and complete independence from your IA topic.<\/div>\n<\/div>\n
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How long should an IB Biology extended essay be?<\/strong><\/p>\nThe strict maximum is 4,000 words. Content beyond 4,000 words will not be read by the examiner. The abstract, tables, graphs, captions, and reference list do not count toward this limit. Most well-structured Biology EEs fall between 3,700 and 3,950 words.<\/div>\n<\/div>\n
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What makes a strong research question for an IB Biology extended essay?<\/strong><\/p>\nA strong research question names the specific organism using its scientific name, identifies a clearly defined independent variable with a measurable dependent variable, and is framed in a way that can be tested with a controlled experimental design or a systematic database analysis. It must be distinct from your IA and avoid prohibited topic areas.<\/div>\n<\/div>\n
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How is the IB Biology extended essay graded and what grade descriptors apply?<\/strong><\/p>\nThe IB Biology EE is marked out of 34 across five criteria (A through E). Grades are awarded from A (excellent, 28 to 34 marks) down to E (elementary, below 8 marks). Criterion C, worth 12 marks, covers critical thinking and is the largest single determinant of your final grade.<\/div>\n<\/div>\n
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What are the most common mistakes in IB Biology extended essays?<\/strong><\/p>\nThe most common mistakes include vague research questions without taxonomic specificity, failure to use peer-reviewed journals, absence of inferential statistical tests, RPPF entries that read as summaries rather than reflections, and topic overlap with the IA. Choosing prohibited topics such as vertebrate experimentation or human physiology studies is also a serious error.<\/div>\n<\/div>\n
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Should you choose a lab-based or literature-based IB Biology extended essay?<\/strong><\/p>\nBoth tracks are valid and can score an A. A lab-based EE gives you control over your data and is strong for Criteria A and C if executed with sufficient scale. A literature-based or database EE (using resources such as NCBI, GBIF, or published epidemiological datasets) can also score very highly if the analytical framework is rigorous and the argument is well-constructed. The choice should depend on what resources you have access to and what kind of thinking you do best.<\/div>\n<\/div>\n<\/div>\n
Conclusion<\/strong><\/p>\nAt Times Edu, we have guided hundreds of IB students through the EE process since 2018, helping them avoid the traps described in this article and build essays that contribute meaningfully to their university applications. If you are at the early stages of your Biology EE or have a draft you want reviewed by an experienced IB specialist, we invite you to book a personalised academic consultation with our team. The right guidance at the right time makes a measurable difference to both your score and your confidence as an independent researcher.<\/p>\n\n\n
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\n 5\/5 - (1 vote) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"
The IB Biology Extended Essay is an independent research project that requires students to investigate a focused biological question with greater depth, scientific rigour, and analytical complexity than the standard Internal Assessment. A strong Biology EE combines a precise research question, a well-designed methodology or database approach, engagement with academic literature, appropriate statistical analysis, and … Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":46223,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","rank_math_title":"","rank_math_description":"","footnotes":""},"categories":[170],"tags":[],"class_list":["post-46249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ib"],"_links":{"self":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/46249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/comments?post=46249"}],"version-history":[{"count":3,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/46249\/revisions"}],"predecessor-version":[{"id":46266,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/46249\/revisions\/46266"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/media\/46223"}],"wp:attachment":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/media?parent=46249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/categories?post=46249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/tags?post=46249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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