100 Best Biology Essay Topics in 2022

Sciences arise neither by themselves nor because someone invents them simply “out of interest.” Any science appears as a result of the need for humanity to solve certain problems that have arisen in the process of its development. Biology is not an exception, it also arose in connection with the solution of very important problems for people. The main tasks of modern biology are the study of the relationship between man and the environment, the diversity of living organisms and their interaction with each other, the study of the possibilities of prolonging human life, and the cure of various serious diseases. The list is endless.

That is why your biology essay is a great chance to figure out something curious about your environment or even yourself and gain a better understanding of the world. No wonder that the choice of the topic may perplex you. That’s why we are here – after reading some hints on how to select the best biology essay topic and looking through various examples you will find the suitable one.

Tips on How to Select the Best Biology Essay Topic?

To begin with, biology is a complicated discipline and there surely are numerous aspects of it you are not aware of well. It is for this reason that you should pick a topic keeping your basic knowledge in mind. You can be interested in whatever you are but preparation for some topics may take an enormous amount of time and effort.

Next, while searching for a scope of specialization, remember that biology is ubiquitous. Just look around and you will find ready-made topics! You can write about the evolution of your pet species, the structure of your home plant, the process of fertilizing soil if you’re into gardening, or examine which processes were taking place in your body during last year’s flu. Use your imagination!

After all, if you still feel frustrated about what to write, your instructor can help you. It is a great idea to consult with your biology teacher because he is able to consider every aspect of your assignment – requirements, given time, your understanding of the subject, and most importantly, he knows how a successful topic should be composed. Such guidance will inspire you.

Who Curates Our List of Biology Essay Topics?

Our biology essay topics are curated by professionals who have extensive experience in writing different types of works. They are thoroughly selected and sorted to ease your topic decision. Above that, they are all checked for the availability of the materials on every question. Feel free to pick any topic you like!

20 Key Biology Essay Questions in 2022

  1. What are the key properties of life?
  2. What is a cell theory?
  3. What are the domains and kingdoms of life?
  4. How is hereditary information transmitted to future generations?
  5. What is natural selection?
  6. Why is water necessary for life?
  7. How is a cell structured?
  8. What is metabolism?
  9. How does photosynthesis work?
  10. Mitosis and meiosis: how do cells divide?
  11. What is DNA?
  12. What is genetic drift?
  13. Why do biologists use phylogenetic trees?
  14. What is bacteria?
  15. What are archaea?
  16. How do fungi function?
  17. How do substances cycle in nature?
  18. What is the main breakthrough in biology in the XXI century?
  19. What is the structure of connective tissue?
  20. The experiments of Lazzaro Spallanzani and Louis Pasteur

20 Controversial Biology Essay Topics

  1. How did life on Earth emerge?
  2. Can plants feel pain?
  3. Do animals have consciousness?
  4. Biological breakthroughs are impossible without animal testing
  5. What regulates gene expression?
  6. Who are the modern relatives of dinosaurs?
  7. What is the last universal common ancestor (LUKA)?
  8. Where did eukaryotes originate from?
  9. Are viruses alive?
  10. Development and manufacture of transgenic products
  11. Basic theories of human origins
  12. The process of cloning
  13. Why hasn’t the secret of brain functioning been discovered yet?
  14. What is the paradox of the plankton?
  15. Opposing concepts in cell theory
  16. A fetus can’t feel pain
  17. The status of nanobacterium
  18. How does vaccination work?
  19. Why is it legal to harvest embryonic stem cells?
  20. Genetic testing and ethical issues

20 Good Biology Essay Topics

  1. The earliest roots of biology
  2. The development of biology with the improvement of the microscope
  3. Sugar in the process of cell respiration
  4. Cell communication
  5. What are the main laws of inheritance?
  6. Biological features of animal migration
  7. Characterization of DNA biosynthesis
  8. Biogeocenosis as an important biological process
  9. Features of the practical application of algae
  10. Genetic engineering and its main issues
  11. Types of races: specifics of their origin
  12. Enzymes: functions and determination of their activity
  13. The evolutionary process of a flower
  14. Invertebrate symmetry
  15. Parasites: general characteristics, significance for humans
  16. Biogeochemical cycles and their disruption by humans
  17. Competition as the most important form of the struggle for existence
  18. Biological production of aquatic ecosystems and ways to increase it
  19. Features of the embryonic development of rodents
  20. The global carbon cycle and human-induced change

20 Human Biology Essay Topics

  1. The mouse as a model for human biology
  2. The secular trend in human physical growth
  3. Proteins: chemical composition, properties, and significance for the human body
  4. Anthropogenesis: essence and features
  5. The role of medicinal plants in human life
  6. Hereditary human diseases: prerequisites for the occurrence
  7. How do people age?
  8. Characteristics of human biorhythms
  9. The specificity of the development of immunity
  10. Vitamins: types and their role in the human body
  11. Circles of human blood circulation, the interdependence of the respiratory and cardiovascular systems
  12. The interaction of neurons in the nerve centers
  13. The main functions of the body system, their relationship
  14. The influence of smoking, alcohol, and drug abuse by parents on the embryonic development of a child
  15. Mechanisms for maintaining intracranial pressure
  16. Anatomical, physiological, and biochemical adaptation in the process of restructuring the body in connection with the disease
  17. Evolutionary gains and losses of a man
  18. Age characteristics of biological adaptation in humans
  19. Hormones, their function, and influence on human behavior
  20. Organ systems of the body and their brief characteristics

20 Best Biology Essay Ideas

  1. The development of a multicellular organism
  2. Characteristic features of the regeneration process
  3. Biological eras and their characteristics
  4. Guided natural selection and its implications for the evolution of species
  5. Mammals: features, structure, comparative anatomical analysis on the example of two representatives
  6. Genetic engineering techniques
  7. Catastrophe theory and the progress of living nature
  8. Biological aspects of pathogenesis in animals and plants
  9. Apomixis and its meaning
  10. Self-regulation in biology
  11. The principle of optimality in biology and the theory of transformation
  12. Reproduction and development of living systems
  13. Basics of organization and sustainability of the biosphere
  14. The experiments of Lazzaro Spallanzani and Louis Pasteur
  15. Panspermia theory
  16. Macro and microelements: their role in the structure of living matter
  17. What tasks are being solved at the molecular level?
  18. Forms of movement at the subcellular, cellular, and organism levels
  19. Symbiosis as a supraorganism system
  20. Reproduction forms: asexual, vegetative, and sexual

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