Cells, genetics, evolution, ecosystems โ€” biology is the fascinating science of life itself, expanding with new discoveries every day. Our Biology quizzes help you get to know the living world in depth, covering cell division, heredity and genetics, the nervous system, plant physiology, ecology and biotechnology. Solo mode lets you read a detailed explanation after every question, so you can quickly fill in knowledge gaps. Discover the mysteries of life โ€” jump into a quiz now!

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Biology Quiz

Free online Biology quiz. Test your knowledge with hundreds of questions.