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.
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Track practice: print a star chart
- Q1.The theory of 'use and disuse' of organs was proposed by:
- A.Charles Darwin
- B.Jean-Baptiste Lamarck
- C.Alfred Russel Wallace
- D.Gregor Mendel
- Q2.Which of the following is considered the 'Age of Reptiles'?
- A.Cenozoic era
- B.Paleozoic era
- C.Mesozoic era
- D.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:
- A.Similar function but different structure
- B.Similar structure but different function
- C.Both similar structure and function
- D.Different structure and different function
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What's inside this workbook
This Class 12 Biology Practice contains 10 questions across 2 printable pages and includes a full answer key at easy difficulty. Aligned to the CBSE and NCERT syllabus.
How this worksheet helps your child
- Builds confidence in core Biology concepts taught in Class 12 through repeated, varied practice.
- Aligned to CBSE and NCERT — questions mirror the pattern children see in school tests and unit assessments.
- Comes with an answer key so parents and students can self-check in minutes, without needing a teacher.
- Pitched at easy level — use it for daily homework, weekend revision or quick exam warm-ups.
Topics covered
How to use this worksheet at home
Open the print view and use your browser's Print dialog to print on regular A4 paper or save as a PDF. Hand the printed sheet to your child (Class 12) and set a relaxed time limit — 15 to 25 minutes works for most Biology worksheets. When they're done, open the "With answer key" view and let them self-mark question by question. Re-print as many times as you need; the file never expires and there's no download limit.
Frequently asked questions
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- Is it aligned to the CBSE / NCERT syllabus?
- Yes. All Class 12 worksheets are built around the CBSE and NCERT pattern so they map cleanly to what your child is studying in school.
- Can I print this worksheet at home?
- Yes. Click "Open print view" and use your browser's Print dialog to print on standard A4 paper, or save it as a PDF for later. The layout is designed to fit cleanly without scaling.
- Does it include an answer key?
- Yes — click "With answer key" to print a version with answers included, so parents and students can self-mark in minutes.
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