Biology Evolution Online Mcqs Test

Mustansar KhanLast Updated: October 14, 2025

Important Biology Evolution Question and Answer

Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Biology Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Biology Interview Question Answer Universities Entrance Test

Biology Evolution Practice Test Online With Explanation

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1. Which of the following is not a concept of Neo-Darwinism?
Natural selection
Recombination
Inheritance of acquired traits
Mutation

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2. Which phrase best describes survival of the fittest?
All traits are inherited
Largest animals win
Fastest runners survive
Best adapted organisms reproduce

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3. Which term refers to organisms better suited to their environment surviving longer?
Natural selection
Speciation
Artificial selection
Mutation

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4. According to Lamarck, giraffes have long necks because:
They mutated randomly
They were born that way
They stretched their necks to reach food
They evolved in colder climates

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5. Which of the following is NOT a basic assumption of Darwin’s theory?
Variation exists
Survival of the fittest
Struggle for existence
Acquired traits are inherited

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6. Which term describes a trait that no longer serves a useful function?
Vestigial
Adaptive
Homologous
Analogous

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7. Which of the following is a vestigial organ in humans?
Heart
Appendix
Liver
Kidney

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8. Which of the following would NOT be considered a driving force of evolution?
Mutation
Photosynthesis
Natural selection
Genetic drift

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9. What is artificial selection?
Evolution in labs
Survival of the strongest
Human-guided breeding for desired traits
Natural evolutionary change

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10. What type of evolution leads to similar structures in unrelated organisms?
Convergent evolution
Artificial selection
Divergent evolution
Parallel evolution

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11. Which of the following provides molecular evidence for evolution?
Fossilized bones
Embryonic stages
Homologous organs
DNA and protein similarities

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12. What causes speciation?
Reproductive isolation
Shared habitats
Continuous gene flow
Mating within the same species

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13. Which is an example of adaptive radiation?
Penguins in Antarctica
Alligators in swamps
Bacteria in petri dishes
Finches on Galapagos Islands

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14. The human tailbone (coccyx) is an example of:
Evolutionary defect
Vestigial structure
Analogous structure
Functional structure

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15. Which scientist laid the foundation of genetics that supported Neo-Darwinism?
Wallace
Mendel
Darwin
Lamarck

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16. What does the fossil record primarily show?
Changes in organisms over time
All organisms evolved in one era
Fossils are formed randomly
A complete history of all life

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17. The wings of a bat and the arms of a human are:
Mutated
Vestigial
Analogous
Homologous

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18. Which group of animals is considered to have evolved from reptiles?
Mammals
Fishes
Amphibians
Birds

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19. Which of the following is a concept of Neo-Darwinism?
Genetic mutations and natural selection
Inheritance of acquired traits
Use and disuse
Universal ancestry

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20. Which term refers to a random change in gene frequencies?
Mutation
Natural selection
Adaptation
Genetic drift

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21. Which evidence of evolution is provided by embryology?
Climate change
Bone fossils
Mutations
Similar early development stages

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22. Which type of selection favors average traits?
Random selection
Directional selection
Stabilizing selection
Disruptive selection

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23. What causes variation in populations according to Neo-Darwinism?
Adaptation
Overpopulation
Mutation and recombination
Growth

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24. Which of the following best defines evolution?
Movement of organisms
Gradual change in species over time
Sudden creation of new traits
Rapid change of an individual

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25. Which structure is analogous to a bird’s wing?
Insect wing
Human arm
Whale flipper
Dog paw

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26. What is the raw material of evolution?
Temperature
Sunlight
Energy
Mutation

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27. Which of the following best explains why some organisms survive and reproduce better than others?
Random luck
Smaller body size
Favorable inherited traits
Equal reproductive chances

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28. What is the unit of evolution?
Gene
Individual
Population
Cell

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29. Which concept is central to Darwin’s theory of evolution?
Use and disuse
Natural selection
Spontaneous generation
Acquired characteristics

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30. Which of the following scientists proposed the theory of natural selection?
Charles Darwin
Jean-Baptiste Lamarck
Gregor Mendel
Louis Pasteur

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31. The similarity in bone structure of the forelimbs of whales, bats, and humans is due to:
Natural selection
Homologous structures
Artificial selection
Environmental similarities

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32. Which of the following is not evidence for evolution?
Artificial selection
Fossils
Homologous structures
Astrology

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33. Which structure provides evidence of common ancestry?
Analogous structures
Artificial limbs
Vestigial structures
Homologous structures

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34. Fossil evidence supports evolution because it shows:
Differences in rocks
Sudden species appearances
Progressive changes over time
Genetic mutations

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35. What is a fossil?
Living organism
Preserved remains of ancient organisms
Moon mineral
Meteor rock

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36. Which of the following would most likely increase genetic variation?
Cloning
Asexual reproduction
Mutation
Uniform environment

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37. Which theory explains the origin of species through gradual change?
Spontaneous generation
Intelligent design
Catastrophism
Gradualism

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38. Which concept is central to Darwin’s theory?
Mutation
Cloning
Natural selection
Acquired traits

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39. According to Darwin, more offspring are produced than can survive. This leads to:
Overpopulation only
Competition for resources
Rapid extinction
Genetic uniformity

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40. Who co-discovered the theory of natural selection alongside Darwin?
Lamarck
Wallace
Lyell
Mendel

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41. The inheritance of acquired characteristics is associated with:
Wallace
Lamarck
Mendel
Darwin

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Mustansar KhanLast Updated: October 14, 2025

Important Biology Evolution Question and Answer

Biology Evolution Practice Test Online With Explanation

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