Evolution means the gradual change of life over time and how new forms of life develop. In this unit, you will learn about the evolution from prokaryotes to eukaryotes, Darwin’s theory, Neo-Darwinism, natural and artificial selection, and the role of genes. Evidence for evolution comes from fossils, anatomy, and DNA.
✅ This PDF also includes solved MCQs, short questions, long questions, and exercises, making it very helpful for exam preparation.
📥 Download Class 12 Biology Unit 24 – Evolution Notes PDF
Students can easily download the complete Evolution notes PDF for quick revision and exam preparation. This PDF includes:
- All important topics from the unit
- Solved MCQs
- Short questions & long questions
- Exercises with answers
👉 Download PDF: Class 12 Biology Unit 24 – Evolution Notes
❓ Frequently Asked Questions (FAQs) – Evolution
1. What is evolution?
Evolution is the gradual change of living organisms over time, leading to the development of new species.
2. How is evolution different from special creation?
Special creation suggests all life appeared suddenly in its current form, while evolution explains gradual change over millions of years, supported by fossils, anatomy, and genetics.
3. Who was Charles Darwin and what did he contribute?
Charles Darwin (1809–1882) observed plants and animals in South America during the Beagle expedition and proposed the Theory of Natural Selection, explaining how species evolve.
4. What is natural selection?
Natural selection is the process where organisms with favorable traits survive and reproduce more successfully, passing those traits to the next generation.
5. What evidence supports evolution?
Evidence includes fossil records, comparative anatomy, DNA and genetic studies, embryology, and geographical distribution of species.