Class 12 Biology: Evolution Fundamentals

This worksheet covers fundamental concepts of Evolution, including its definition, key theories, and supporting evidence, suitable for Class 12 CBSE students.

Class 12CBSEBiologyeasyPractice

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Q1. The theory of 'use and disuse' of organs was proposed by:
- Charles Darwin
- Jean-Baptiste Lamarck
- Alfred Russel Wallace
- Gregor Mendel
Q2. Which of the following is considered the 'Age of Reptiles'?
- Cenozoic era
- Paleozoic era
- Mesozoic era
- Proterozoic era
Q3. The process by which organisms with traits better suited to their environment tend to survive and reproduce more offspring is called __________.
Q4. Homologous organs are those that have:
- Similar function but different structure
- Similar structure but different function
- Both similar structure and function
- Different structure and different function
Q5. The industrial melanism observed in peppered moths (Biston betularia) is an example of:
- Convergent evolution
- Divergent evolution
- Natural selection
- Artificial selection

+ 5 more in the printable PDF.