By the end of the topic, the learner should be able to:
- Explain the meaning of evolution and the current concepts of evolution
- Describe the struggle for existence and survival for the fittest
- Describe the evidences for organic evolution
- Explain resistance to antibiotics, fungicides and pesticides.
Gladys B. Okumu, Humpden N. Nyamweya, Rosebella Jerotich, James G. Kiura & Shadrack R. Mungania (2018). Secondary Biology, Form Four, Student's Book (Fifth Edition). Kenya Literature Bureau. Nairobi, Kenya.