Essay Topics About Biology: 20 Examples for High School Students

Biology can be a fascinating subject to cover and every high school student in America will at some point have to write an essay on something to do with Biology. This might seem like a daunting task, but if you pick the right topic to cover and do excellent research, you will end up impressing your teacher with your knowledge. If you are looking for topics to help you start thinking about your essay, then you have come to the right place. Here you will get a list of different examples topics that you can use for your next paper.

20 Example Topics


  • The Circulatory System

  • The Digestive System

  • The Endocrine System

  • Immunology

  • The Muscular System

  • The Nervous System

  • The Reproductive System

  • The Respiratory System

  • The Sensory System

  • Botany

  • Cell Biology

  • Ecology

  • Evolution

  • Genetics

  • Microbiology

  • Zoology

  • Ecosystems

  • Anatomy

  • The Integumentary System

  • The Urinary System

Now this list of topics will get you started on finding the right one for your paper. What you can do is pick a topic and do some research and figure out if you can find the specific topic you want to cover. The reason you are doing this with these subjects is because all of these are just general ideas, and you have to narrow down the subject to make your essay easier to write. If you just pick one of these to write, you will end up with a very long paper or one that doesn’t cover the subject fully.

For example, if you are going to cover Genetics, you might want to find something that has to do with a Gene abnormality like blue eyes. Most people don’t know this but at one time everyone had brown eyes and because of a Gene abnormality, many people have blue eyes now. And you can also look at why some people have green eyes as well. The trick is that you have to be precise with what you are going to write about. And as always don’t forget to check your work and sources; they are very important when you are putting your whole paper together. These are all some interesting subjects, and I’m sure once you start researching them, you will find what you need to start your work in no time. And if you can’t decide, ask for help, I’m sure you teacher will help you with what you need.

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