Biology Class 9 Chapter 10: Evolution
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Chapter summary
Chapter 10 of Biology for Class 9 is called "Evolution". It covers 4 learning outcomes of the Federal Board syllabus. You will learn to: explain the theory of evolution by natural selection with examples; describe speciation. Parhayi.com has 153 MCQs, 49 short questions and 16 long questions for this chapter.
Topics in this chapter
- Explain the theory of evolution by natural selection with examples
- Describe speciation
- Describe sources of variation which can lead to…
- Describe evidence of evolution with regards to the…
Sample questions
Try these questions from the chapter. The answers are for Premium students.
- How does comparative anatomy provide an evidence of evolution? (3 marks)
- Rabbit A lives 12 years and leaves no offspring; rabbit B lives 5 years and leaves 20 offspring that breed. Which is fitter in the sense of natural selection? Give a reason. (3 marks)
- A species has 2n = 8 chromosomes. How many different combinations of chromosomes can its gametes have by independent assortment (ignoring crossing over)? Repeat the calculation for 2n = 14 and say what this shows. (3 marks)
What Premium gives you in this chapter
- 153 MCQs with answers and explanations
- 49 short questions with full answers
- 16 long questions with answers
- 14 Learn cards
- 44 Activities and games
- chapter tests that show your weak topics
Biology is the study of living things. Learn the diagrams with their labels, keep the key terms in your own words, and revise each chapter with short questions.
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