This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 7 Evolution – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Use and Disuse theory of organic evolution is put forward by ..... A) Lamarck. B) Darwin. C) Mendel. D) Wallace. Show Answer Correct Answer: A) Lamarck. 2. During natural selection, the organisms with the best adaptations ..... A) Are better adapted to survive. B) Reproduce. C) Pass on their genes. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. The most precise information to use when making phylogenetic trees is ..... A) Fossil. B) Molecular. C) Synapomorphies. D) Morphology. Show Answer Correct Answer: B) Molecular. 4. When periods are compacted together to their characteristics A) Eon. B) Era. C) Period. D) Epoch. Show Answer Correct Answer: B) Era. 5. The movement of alleles in or out of a population A) Genetic Drift. B) Genetic Flow. C) Non-Random Mating. D) Natural Selection. Show Answer Correct Answer: B) Genetic Flow. 6. Which one is NOT one of Charles Darwin's four major evidences for evolution. A) Biogeography. B) Molecular Evidence (DNA). C) Comparative Anatomy. D) Embryological Development. E) Fossil Record. Show Answer Correct Answer: B) Molecular Evidence (DNA). 7. ..... is the slowest breeder A) Cow. B) Human. C) Elephant. D) Camel. Show Answer Correct Answer: C) Elephant. 8. Which scientist. wrote the book The Origin of Species and proposed the theory of Natural Selection A) Jean-Baptiste Lamarck. B) Charles Darwin. C) Gregor Mendel. D) None of the Above. Show Answer Correct Answer: B) Charles Darwin. 9. A similar species of penguin live on Asia, Antarctica and Australia. This is an example of A) Species vary globally. B) Species vary locally. C) Species vary over time. D) None of the above. Show Answer Correct Answer: A) Species vary globally. 10. Which statement is part of Darwin's theory of evolution by natural selection? A) More offspring are produced than can possibly survive. B) The organisms that are the fittest are always largest and strongest. C) The number of offspring is not related to fitness. D) Acquired characteristics that are inherited are the cause of evolution. Show Answer Correct Answer: A) More offspring are produced than can possibly survive. 11. What will happen to the frequency of the recessive allele for the HbS gene when there is an outbreak of malaria? A) The frequency will increase. B) The frequency will decrease. C) The frequency will remain constant. D) It is impossible to predict how the allele frequency will change. E) The frequency will be cut in half with each generation. Show Answer Correct Answer: A) The frequency will increase. 12. What does a phylogenetic tree show? A) Shows how living organisms are related to each other using evidences. B) Shows how certain organisms grow based on their genes. C) Organizes living organisms by color. D) Shows how living organisms interact with each other in the real world. Show Answer Correct Answer: A) Shows how living organisms are related to each other using evidences. 13. Which of the following is the correct way to write the scientific name of the Northern cardinal? A) Cardinalis Cardinalis. B) Cardinalis cardinalis. C) Cardinalis cardinalis. D) Cardinalis Cardinalis. Show Answer Correct Answer: B) Cardinalis cardinalis. 14. ..... believed that organisms develop traits needed for survival and that traits that were unused would become weaker and gradually disappear. A) Watson. B) Lamarck. C) Mendel. D) Darwin. Show Answer Correct Answer: B) Lamarck. 15. What is embryology? A) The oldest stage of development. B) The age of organisms. C) The earliest growth stage of development. D) The life span of an organism. Show Answer Correct Answer: C) The earliest growth stage of development. 16. Why are some chickens observed to have a claw on their wing? A) It is a vestigial structure. B) It is an example of a homologous structure. C) It is a result of a recent mutation. D) It is used for defense. Show Answer Correct Answer: A) It is a vestigial structure. 17. ..... came up with the idea of evolution. A) Darwin. B) Duncan. C) Dillards. D) None of the above. Show Answer Correct Answer: A) Darwin. 18. Which of the following statements is true about the fossil record? A) It provides a complete record of all life that has ever existed on Earth. B) It shows that all species have remained unchanged over time. C) It provides evidence of the common ancestry of life. D) It shows that evolution occurs at a constant rate. Show Answer Correct Answer: C) It provides evidence of the common ancestry of life. 19. All of the following are examples of events that can prevent breeding between species EXCEPT: A) The potential mates have different courtship rituals. B) The gametes of potential mates have biochemical differences. C) The potential mates have similar breeding seasons. D) The potential mates experience behavioral isolation. E) The potential mates experience geographical isolation. Show Answer Correct Answer: C) The potential mates have similar breeding seasons. 20. This theory of the origin of life states that living things come from nonliving matter. A) Bubble hypothesis. B) Primordial Soup theory. C) Meteorite theory. D) Spontaneous generation. Show Answer Correct Answer: D) Spontaneous generation. 21. The selection of certain organisms to create beneficial traits for humans is called ..... A) Bottleneck Effect. B) Natural Selection. C) Mutations. D) Artificial Selection. E) Darwinism. Show Answer Correct Answer: D) Artificial Selection. 22. Which of the following can be considered as "Chemical finger prints" of evolutionary history A) Proteins. B) Carbohydrates. C) Fats. D) RNA. Show Answer Correct Answer: A) Proteins. 23. A method of blending into an environment. A) Extinction. B) Fitness. C) Variation. D) Camoflauge. Show Answer Correct Answer: D) Camoflauge. 24. What was the main evidence the Linnaean classification system used to classify organisms? A) DNA. B) Obvious physical traits. C) All the above. D) None of the above. Show Answer Correct Answer: B) Obvious physical traits. 25. Which of these are true of the first horses? A) The first horses were the size of a modern pony. and lived in the desert. B) The first horses probably ate soft leaves and had four long toes. C) All the above. D) None of the above. Show Answer Correct Answer: B) The first horses probably ate soft leaves and had four long toes. 26. What gave Charles Darwin the idea of evolution? A) Google. B) Wikipedia. C) Mans attempt to destroy mankind. D) Finches in the Galapagos island. Show Answer Correct Answer: D) Finches in the Galapagos island. 27. A feature that a species inherited from an ancestor but that is now less elaborate and functional than in the ancestor A) Vesigial Structure. B) Analogous Structure. C) Evolution. D) Homologous structure. Show Answer Correct Answer: A) Vesigial Structure. 28. The "oxygen revolution" had an enormous impact on life, and likely A) Provided the proper environment for packaging molecules into "protobionts". B) Caused RNA molecules with certain base sequences to become more stable and replicate faster. C) Caused the extinction of many prokaryotic groups due to the rising concentration of O$_{2 }$. D) Resulted from the sudden appearance of animals in the next time period. Show Answer Correct Answer: C) Caused the extinction of many prokaryotic groups due to the rising concentration of O$_{2 }$. 29. The country of Sweden is known for having people with blonde hair and blue eyes. One day a family moves from Sweden to India where dark hair and dark eyes are very common. A female from Sweden marries a male from India and their offspring now have blonde hair and blue eyed traits. A) Natural Selection. B) Mutation. C) Non-Random Mating. D) Gene Flow. Show Answer Correct Answer: D) Gene Flow. 30. What determines if a trait is helpful or harmful? A) Environment. B) Species. C) Population. D) None of the above. Show Answer Correct Answer: A) Environment. 31. Organisms choose to adapt to survive. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 32. ..... is change over time; the process by which a modern organisms have descended from ancient organisms A) Natural Selection. B) Fitness. C) Evolution. D) Fossil. E) Adaptation. Show Answer Correct Answer: C) Evolution. 33. For the formation of chemical compounds, in the prebiotic atmosphere of the energy from ..... source was not available. A) Lightning. B) Radiating heat from the centre of the earth. C) U.V. Radiation. D) A.T.P. Show Answer Correct Answer: D) A.T.P. 34. Which of the following reproductive barriers occurs after two different species mate? A) Habitat isolation. B) Mechanical isolation. C) Behavioral isolation. D) Gametic isolation. Show Answer Correct Answer: D) Gametic isolation. 35. What are analogous structures in the context of convergent evolution? A) They are structures that arise from divergent evolution. B) They are structures that perform similar functions but do not share a common ancestor, they arise from convergent evolution. C) They are structures that share a common ancestor but perform different functions. D) They are structures that have no relation to convergent evolution. Show Answer Correct Answer: B) They are structures that perform similar functions but do not share a common ancestor, they arise from convergent evolution. 36. What is a group of organisms of the same species that live in the same area and can interbreed? A) Organism. B) Species. C) Ecosystem. D) Population. Show Answer Correct Answer: D) Population. 37. The differences in sparrow songs among sympatric species of sparrows are examples of A) Geographic isolation. B) Mechanical isolation. C) Behavioral isolation. D) Convergent evolution. Show Answer Correct Answer: C) Behavioral isolation. 38. Scientists find that most feral cats in a neighborhood have whiskers about 12 cm long. After about 15 generations of stabilizing selection, what would you expect to see? A) Even more cats with 12 cm long whiskers. B) Most cats with whiskers either less than or more than 12 cm long, very few with whiskers 12 cms. C) Most cats with more than 12 cm long whiskers. D) Most cats with less than 12 cm long whiskers. Show Answer Correct Answer: A) Even more cats with 12 cm long whiskers. 39. Which scientist sent their findings to Charles Darwin, who he mentioned in the beginning of his book. A) Jean-Baptist Lamarck. B) Alfred Russel Wallace. C) All the above. D) None of the above. Show Answer Correct Answer: B) Alfred Russel Wallace. 40. What were the earliest living things on Earth? A) Humans. B) Primates. C) Microscopic organisms. D) None of the above. Show Answer Correct Answer: C) Microscopic organisms. 41. What are molecular biology? A) Evolutionary relationshipsamong species can bedetermined by comparinggenes and proteins ofdifferent organisms. B) Molecular biology is the study of culinary arts. C) Molecular biology is the study of ancient civilizations. D) Molecular biology is the study of celestial bodies. Show Answer Correct Answer: A) Evolutionary relationshipsamong species can bedetermined by comparinggenes and proteins ofdifferent organisms. 42. Which of the following is the correct sequence of geologic time from smallest to largest unit? A) Era, eon, period, and epoch. B) Epoch, eon, era, and period. C) Epoch, period, era, and eon. D) Era, eon, epoch, and period. Show Answer Correct Answer: C) Epoch, period, era, and eon. 43. What is it called when different species evolve similar characteristics because of their habitat? A) Divergent Evolution. B) Genetic Variation. C) Convergent Evolution. D) Speciation. Show Answer Correct Answer: C) Convergent Evolution. 44. Tetrapods (4 limbs) have very similar bone structures. This leads biologists to believe: A) They all had a common ancestor. B) Their common ancestor was probably a lamprey. C) Their limbs are convergent evolution. D) None of the above. Show Answer Correct Answer: A) They all had a common ancestor. 45. Which BEST helps a population from going extinct? A) Low mutation rate. B) Small population. C) Genetic variation. D) Similar physical features. Show Answer Correct Answer: C) Genetic variation. 46. Which of these is the best definition of biogeography? A) The study of how and why plants and animals live where they do. B) The study of how and why plants affect each other and the environment. C) All the above. D) None of the above. Show Answer Correct Answer: A) The study of how and why plants and animals live where they do. 47. What role do mutations play in evolution? A) They prevent natural selection. B) They stabilize existing traits. C) They introduce genetic variation. D) They eliminate harmful traits. Show Answer Correct Answer: C) They introduce genetic variation. 48. Which of the following best describes the concept of natural selection in the theory of evolution? A) The process by which organisms with favorable traits are more likely to survive and reproduce. B) The random change in allele frequencies in a population over time. C) The movement of individuals into or out of a population. D) The formation of new species from existing species. Show Answer Correct Answer: A) The process by which organisms with favorable traits are more likely to survive and reproduce. 49. Are features or traits that reappear in an organism after being absent for several generations due to the process of evolution. Atavistic structures are sometimes also referred to as "throwback" features, because they represent a return to an earlier ancestral form. A) Comparative Anatomy. B) Vestigial structures. C) Comparative Embryology. D) Atavistic Structures. Show Answer Correct Answer: D) Atavistic Structures. 50. What does overproduction refer to in evolutionary biology? A) The increase in size of an organism over its lifetime. B) The production of more offspring than can possibly survive. C) The rapid growth of a population in an ecosystem. D) The excessive use of resources by an organism. Show Answer Correct Answer: B) The production of more offspring than can possibly survive. 51. An example of an analogous structure includes: A) Wing of a butterfly and bird wing. B) Bird wing and human arm. C) Rat appendix and human appendix. D) None of the above. Show Answer Correct Answer: A) Wing of a butterfly and bird wing. 52. Conjugation occurs when ..... A) None of these. B) A virus injects DNA into the bacterium. C) A plasmid is transferred from one bacteria to another. D) Bacteria take up DNA from the environment. Show Answer Correct Answer: C) A plasmid is transferred from one bacteria to another. 53. How does the removal of a keystone species affect an ecosystem? A) It leads to the extinction of all species in the ecosystem. B) It causes a minor change in the ecosystem dynamics. C) It can lead to significant changes in the population sizes of other species. D) It has no effect on the ecosystem. Show Answer Correct Answer: C) It can lead to significant changes in the population sizes of other species. 54. This is a process in which organisms gradually change over time. A) Environment. B) Fossils. C) Competition. D) Evolution. Show Answer Correct Answer: D) Evolution. 55. The evolution of one species into two or more species as a result of different populations becoming reproductively isolated from each other is: A) Reproductive selection. B) Adaptive radiation. C) Artificial selection. D) Independent assortment. Show Answer Correct Answer: B) Adaptive radiation. 56. What mechanism of change occurs when certain traits makes an organism more fit, allowing their traits to be passed on? A) Gene Flow. B) Mutation. C) Natural Selection. D) Genetic Drift. Show Answer Correct Answer: C) Natural Selection. 57. Populations of all species are limited by ..... A) Genetic change, speciation, adaptation, and separation. B) Starvation, disease, competition, and predation. C) Natural selection, evolution, and division. D) Breeding, selection, sediment, and ancestry. Show Answer Correct Answer: B) Starvation, disease, competition, and predation. 58. Which of the following statement about fossils is FALSE? A) Fossils from the upper layers are the ancestors of modern forms. B) Fossils from the deeper layers are the ancestors of current forms. C) Fossils are remains of ancient organisms. D) Fossils from the uppermost rock are most like current forms. Show Answer Correct Answer: A) Fossils from the upper layers are the ancestors of modern forms. 59. The combined genetic information of all members of a particular population forms a A) Niche. B) Phenotype. C) Population. D) Gene pool. Show Answer Correct Answer: D) Gene pool. 60. Which scientist visited the Galapagos Islands and came up with the theory of natural selection? A) Charles Darwin. B) Theodor Schwann. C) Gregor Mendel. D) Rudolf Virchow. Show Answer Correct Answer: A) Charles Darwin. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 7 Evolution Quiz 1Class 12 Biology Chapter 7 Evolution Quiz 2Class 12 Biology Chapter 7 Evolution Quiz 3Class 12 Biology Chapter 7 Evolution Quiz 4Class 12 Biology Chapter 7 Evolution Quiz 5Class 12 Biology Chapter 7 Evolution Quiz 6Class 12 Biology Chapter 7 Evolution Quiz 7Class 12 Biology Chapter 7 Evolution Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books