This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Artificial Selection A) Humans control over environment. B) Environment control. C) Both human and natural selection control. D) None of the above. Show Answer Correct Answer: A) Humans control over environment. 2. Genetic drift is change in the allele frequency of a population due to ..... A) Random chance. B) Natural selection. C) Non-random mating (sexual selection). D) Artificial selection. Show Answer Correct Answer: A) Random chance. 3. In natural selection, the selective agent is the A) Humans. B) Mutations. C) Breeders. D) Environment. Show Answer Correct Answer: D) Environment. 4. High fitness individuals in a population: A) Live longer and have more offspring. B) Live longer but have less offspring. C) Neither live longer nor have more offspring. D) None of the above. Show Answer Correct Answer: A) Live longer and have more offspring. 5. Way back when, some important scientists studied the Earth and concluded ..... A) The earth was way older than we thought. B) The earth was way younger than we thought. C) Species did not vary over time. D) Earth is cool. Show Answer Correct Answer: A) The earth was way older than we thought. 6. All of the alleles in all the individuals that make up a population's fitness A) Fitness. B) Gene pool. C) Gene flow. D) Genetic drift. Show Answer Correct Answer: B) Gene pool. 7. How do fossils demonstrate evidence of evolution? A) They show that ancient species share similarities with species now on Earth. B) They show evidence of species that are not extinct. C) They are the primary source of evidence of natural selection. D) Fossils reveal that many species have remained unchanged for millions of years. Show Answer Correct Answer: A) They show that ancient species share similarities with species now on Earth. 8. Each of the following is a condition necessary for natural selection to occur EXCEPT ..... A) More offspring are born than can survive. B) Population size is very large. C) Fitness varies among individuals. D) There is heritable variation among members of the population. Show Answer Correct Answer: B) Population size is very large. 9. What happens if a species does not evolve? A) It will survive and reproduce. B) It will adapt. C) It will become extinct. D) None of the above. Show Answer Correct Answer: C) It will become extinct. 10. Developed theory of Natural Selection A) Darwin. B) Lamarck. C) All the above. D) None of the above. Show Answer Correct Answer: A) Darwin. 11. Relating or denoting to the most recent era A) Paleozoic. B) Mesozoic. C) Cenozoic. D) None of the above. Show Answer Correct Answer: C) Cenozoic. 12. Comparative Anatomy A) The study of similarities and differences in the anatomy of different species, providing evidence for evolution and common ancestry. B) The analysis of the chemical composition of different species' tissues. C) The examination of the behavioral patterns of various animal species. D) The classification of species based on their habitat and geographical distribution. Show Answer Correct Answer: A) The study of similarities and differences in the anatomy of different species, providing evidence for evolution and common ancestry. 13. Which of the following is an example of a homologous structure that provides evidence for evolution? A) The wing of a bat and the flipper of a whale. B) The wing of a butterfly and the wing of a bird. C) The eye of a human and the eye of an octopus. D) The tail fin of a shark and the tail fin of a dolphin. Show Answer Correct Answer: A) The wing of a bat and the flipper of a whale. 14. A structure that serves the same purpose, but is not made in the same way is called A) A vestigial structure. B) A homologous structure. C) An analogous Structure. D) A pheryngial structure. Show Answer Correct Answer: C) An analogous Structure. 15. Preserved remains of once-living organisms A) Fossils. B) Evolution. C) Extinction. D) Convergent evolution. Show Answer Correct Answer: A) Fossils. 16. Which describes an African butterfly species that exists in two strikingly different color patterns? A) Artificial selection. B) Directional selection. C) Stabilizing selection. D) Disruptive selection. E) Sexual selection. Show Answer Correct Answer: D) Disruptive selection. 17. Comparative ..... is the study of the similarities and differences in the structures of different species. A) Embryology. B) Anatomy. C) All the above. D) None of the above. Show Answer Correct Answer: B) Anatomy. 18. What is the primary mechanism that drives evolution according to Charles Darwin's theory? A) Natural selection. B) Genetic drift. C) Artificial selection. D) Gene flow. Show Answer Correct Answer: A) Natural selection. 19. In the reducing atmosphere of earth, ..... was absent. A) Nitrogen. B) Hydrogen. C) Oxygen. D) Ammonia. Show Answer Correct Answer: C) Oxygen. 20. Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine? A) The color patterns of the offspring of each species. B) How much the size ranges of the two species differ. C) The methods of proteins synthesis that each species uses. D) How closely related the two species are to each other. Show Answer Correct Answer: D) How closely related the two species are to each other. 21. What is suggested by the similarity of early embryos of different species of vertebrates? A) No evolutionary relationships between the groups. B) Recent common ancestry. C) Similar environments in the past. D) Evolution from a distant common ancestor. Show Answer Correct Answer: D) Evolution from a distant common ancestor. 22. Extinction can occur because of which of the following? A) All can be causes of extinction. B) Increased competition with other species. C) New predators within the environment. D) Loss of habitat and/or catastrophes. Show Answer Correct Answer: A) All can be causes of extinction. 23. Charles Darwin's theory of evolution by natural selection explains each of the following EXCEPT how ..... A) Species can become extinct. B) Traits are passed from parent to off spring. C) Species descend from common ancestors. D) Evolution takes place in the natural world. Show Answer Correct Answer: B) Traits are passed from parent to off spring. 24. Certain viruses or bacteria can integrate their DNA into the host cell's genome, leading to mutations. A) Chemical Mutagens. B) Radiation Mutagens. C) Biological Mutagens. D) Environmental Mutagens. Show Answer Correct Answer: C) Biological Mutagens. 25. A change in the frequency of existing genes due to a random event/change A) Genetic Flow. B) Extinction. C) Speciation. D) Genetic Drift. Show Answer Correct Answer: D) Genetic Drift. ← PreviousNext →Related 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 8Class 12 Biology Chapter 7 Evolution Quiz 9Class 12 Biology Chapter 7 Evolution Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books