There are many potential topics for a biology Extended Essay (EE) in the International Baccalaureate (IB) program.

Topic Ideas

Some possibilities include the following:

1. The effects of pollution on a particular species or ecosystem.
2. The genetic basis of a specific disease or trait.
3. The comparative physiology of a specific mammal and bird.
4. The effects of climate change on a particular species or ecosystem.
5. The impact of human activity on the evolution of a species.
6. The physiology of a specific plant species.
7. The efficacy of a specific medicinal plant.
8. The comparison of the anatomy and physiology of a specific animal species in captivity and in the wild.
9. The impact of a specific invasive species on an ecosystem.
10. The effect of different fertilizers on the growth and development of a specific plant species.
11. The study of the symbiotic relationship between specific species.
12. The effect of different light conditions on the growth and development of a specific plant species.
13. The impact of different temperature conditions on the physiology of a specific microorganism.
14. The study of the genetic diversity within a specific species.
15. The study of the effects of different pH levels on the growth and development of a specific plant species.
16. The impact of human activity on the population dynamics of a specific species.
17. The study of the effects of different soil types on the growth and development of a specific plant species.
18. The study of the impacts of different pesticides on the physiology of a specific species.
19. The study of the effects of different water conditions on the growth and development of a specific plant species.
20. The study of the impact of ocean acidification on the physiology of a specific marine species.

It’s important to note that these are just examples of topics for your IB EE in Biology. You should choose a topic that interests you and that you can find enough information on.

Additionally, it’s essential to consult with your supervisor to make sure the topic meets the requirements of the Extended Essay and that you have access to the necessary resources to complete the research.

Students can use these themes in their essays by researching and analyzing the specific topic, providing evidence and examples to support their claims, and discussing the implications and potential solutions to the issue at hand.

For example, in an essay on the effects of pollution on a particular species or ecosystem, a student could research the specific pollutants that are affecting the species or ecosystem, analyze the effects those pollutants are having, and discuss potential solutions to mitigate the pollution and its effects.

These are experiments students can use for Biology EE topics:

1. The effects of pollution on a particular species or ecosystem: Students can conduct experiments measuring the levels of pollutants in a specific area and then observe the impact on a chosen species or ecosystem. For example, students can observe the impact of pollution on the growth, reproduction, and overall health of a chosen plant or animal species.
2. The genetic basis of a specific disease or trait: Students can conduct genetic tests and experiments to identify the specific genes associated with a chosen disease or trait. They can also use genetic engineering techniques to modify the genes and study the impact on the phenotype of the organism.
3. The comparative psychiatry of a specific mammal and bird: Students can conduct experiments to compare the physiology of a chosen mammal and bird species. For example, students can study the brain structure, behavior, and cognition of the two species and compare the results.
4. The effects of climate change on a particular species or ecosystem: Students can conduct experiments to study the impact of different climate conditions on a chosen species or ecosystem. For example, students can study the impact of rising temperatures, changing precipitation patterns, or increasing CO2 levels on the growth, reproduction, and overall health of a chosen plant or animal species.
5. The impact of human activity on the evolution of a species: Students can conduct experiments to study the impact of human activity on the evolution of a chosen species. For example, students can study the impact of habitat destruction, hunting, or pollution on the genetic diversity and population dynamics of a chosen species.
6. The psychiatry of a specific plant species: Students can conduct experiments to study the physiology of a chosen plant species. For example, students can study the plant’s response to different environmental conditions, such as light, temperature, or water availability.
7. The efficacy of a specific medicinal plant: Students can conduct experiments to study the medicinal properties of a chosen plant species. For example, students can test the plant’s ability to kill or inhibit the growth of certain microorganisms or study the plant’s ability to reduce inflammation or pain in animals or humans.
8. The comparison of the anatomy and psychiatry of a specific animal species in captivity and in the wild: Students can conduct experiments to compare the anatomy and psychiatry of a specific animal species in captivity and in the wild. They can study the impact of captivity on the physiology, physiology, and behavior of the animals.
9. The impact of a specific invasive species on an ecosystem: Students can conduct experiments to study the impact of a chosen invasive species on a specific ecosystem. For example, students can study the impact of invasive species on the growth, reproduction, and overall health of native plant and animal species.
10. The effect of different fertilizers on the growth and development of a specific plant species: Students can conduct experiments to study the impact of different fertilizers on the growth and development of a chosen plant species. For example, students can test the effect of different types of fertilizers on the plant’s growth rate, leaf size, and overall health.
11. The study of the symbiotic relationship between specific species: Students can conduct experiments to study the symbiotic relationship between chosen species. For example, students can study the impact of the removal of one species on the other species or study the impact of different environmental conditions on the symbiotic relationship.
12. The effect of different light conditions on the growth and development of a specific plant species: Students can conduct experiments to study the impact of different light conditions on the growth and development of a chosen plant species. For example, students can study the impact of different light intensities, duration, and spectrum on the plant’s growth rate, leaf size, and overall health.
13. The impact of different temperature conditions on the physiology of a specific microorganism: Students can conduct experiments to study the impact of different temperature conditions on the physiology of a chosen microorganism. For example, students can study the impact of different temperatures on the growth rate, metabolism, and overall health of the microorganism.
14. The study of the genetic diversity within a specific species: Students can conduct experiments to study the genetic diversity within a chosen species. For example, students can use genetic markers to identify different genetic variations within a population of the species and then study the impact of these variations on the phenotype of the organism.
15. The study of the effects of different pH levels on the growth and development of a specific plant species: Students can conduct experiments to study the impact of different pH levels on the growth and development of a chosen plant species. For example, students can study the impact of different pH levels on the plant’s growth rate, leaf size, and overall health.
16. The impact of human activity on the population dynamics of a specific species: Students can conduct experiments to study the impact of human activity on the population dynamics of a chosen species. For example, students can study the impact of habitat destruction, hunting, or pollution on the population size, growth rate, and overall health of the species.
17. The study of the effects of different soil types on the growth and development of a specific plant species: Students can conduct experiments to study the impact of different soil types on the growth and development of a chosen plant species. For example, students can study the impact of different soil types on the plant’s growth rate, leaf size, and overall health.
18. The study of the impacts of different pesticides on the physiology of a specific species: Students can conduct experiments to study the impact of different pesticides on the psychiatry of a chosen species. For example, students can study the impact of different pesticides on the growth rate, reproduction, and overall health of the species.
19. The study of the effects of different water conditions on the growth and development of a specific plant species: Students can conduct experiments to study the impact of different water conditions on the growth and development of a chosen plant species. For example, students can study the impact of different water availability, salinity, or temperature on the plant’s growth rate, leaf size, and overall health.
20. The study of the impact of ocean acidification on the psychiatry of a specific marine species: Students can conduct experiments to study the impact of ocean acidification on the psychiatry of a chosen marine species. For example, students can study the impact of increasing acidity levels on the growth rate, reproduction, and overall health of the species.

Additionally, in an essay on the comparative psychiatry of a specific mammal and bird, a student could research and compare the brain structures, behaviors, and cognitive abilities of the two species and discuss any similarities and differences found.

A student can ask for help from a writing service if they need assistance with their essay. This can bring several benefits to the student, such as:

• Professional guidance: Writing services often have experienced writers and editors who can provide guidance on the essay topic and structure, as well as help with research and editing.

• Improved quality: A writing service can help improve the overall quality of the essay, including grammar, punctuation, and formatting.

• Better grades: With the help of a writing service, a student’s essay is likely to be of higher quality, which can lead to better grades.

• Time-saving: A writing service can help save time as the student can focus on other responsibilities while the writing service works on the essay.

• Customization: Writing services can also provide a customized service that can be tailored to the student’s specific needs and requirements.

• Originality: Professional writers will provide original work that is free from plagiarism, which is important in academic writing.

It is important to note, however, that a student should always ensure that the writing service they use is reputable and that they review and understand the work they receive before submitting it as their own.

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