A brief account of evolution — NEET Biology Questions

Practice 30 questions on A brief account of evolution from Evolution (NCERT Class 12, Chapter 6). Free samples below — get all 30 in the app.

30 Questions Evolution Class 12

Sample Questions — A brief account of evolution

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MCQ
The Mesozoic era was succeeded by which era, according to evolutionary timescale?
  • A. Cenozoic
  • B. Paleozoic
  • C. Archaeozoic
  • D. Cambrian
✅ Correct Answer: A
NCERT describes the Cenozoic era as succeeding the Mesozoic era and being the "Age of Mammals."
MCQ
Q9. Why is the Cenozoic era also called the \"Age of Mammals\"?
  • A. Only mammals existed
  • B. Mammals first appeared then
  • C. All reptiles were extinct
  • D. Mammals diversified and became dominant
✅ Correct Answer: D
Post-Mesozoic, mammals occupied ecological roles formerly held by reptiles.
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MCQ
Which group of animals was dominant in the Mesozoic era?
  • A. Reptiles
  • B. Fishes
  • C. Amphibians
  • D. Mammals
✅ Correct Answer: A
The Mesozoic era is often referred to as the "Age of Reptiles."
MCQ
Q5. Assertion (A): Archaeopteryx had feathers like birds and teeth like reptiles. Reason (R): Archaeopteryx represents a transition form in vertebrate evolution.
  • A. Both A and R are true, and R is the correct explanation of A
  • B. Both A and R are true, but R is not the correct explanation of A
  • C. A is true, but R is false
  • D. A is false, but R is true
✅ Correct Answer: A
Archaeopteryx is a classic example of a connecting link, showing features of both reptiles and birds.
MCQ
The first cells capable of producing energy using sunlight were likely
  • A. cyanobacteria
  • B. anaerobic bacteria
  • C. chemoautotrophs
  • D. heterotrophs
✅ Correct Answer: A
Photosynthetic autotrophs like cyanobacteria evolved later and released oxygen.

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