This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 63 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 63 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an example of variation in bearded dragons? A) All bearded dragons can change color to regulate their body temperature. B) Some bearded dragons have longer tails than others. C) Bearded dragons that eat more insects grow larger. D) Bearded dragons live in various parts of Australia. Show Answer Correct Answer: B) Some bearded dragons have longer tails than others. 2. Chemicals that can alter DNA structure or interfere with DNA replication, such as nitrous acid, benzene, or aflatoxins. A) Chemical Mutagens. B) Radiation Mutagens. C) Biological Mutagens. D) Environmental Mutagens. Show Answer Correct Answer: A) Chemical Mutagens. 3. The study of prehistoric life. A) Mutations. B) Coevolution. C) Paleontology. D) Embryology. Show Answer Correct Answer: C) Paleontology. 4. An ancient ANCESTOR is A) An extinct species related to a current species. B) A current species that turned into an extinct species. C) An imposter of the imperial empire. D) A false equivalency between flatulence and belches. Show Answer Correct Answer: A) An extinct species related to a current species. 5. A hazardous algal bloom can be caused by? A) Too much oxygen in the water. B) The dumping of raw sewage into the water. C) A large number of fish dying in the water. D) Too little oxygen in the water. Show Answer Correct Answer: B) The dumping of raw sewage into the water. 6. Bone structure is NOT an example of adaptation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 7. The common ancestor of modern-day dogs is the A) Wolf. B) Fox. C) Terrier. D) Poodle. Show Answer Correct Answer: A) Wolf. 8. Similar structures that are found in different species are called ..... A) Homologous Structures. B) Vestigial Structures. C) Identical Structures. D) Necessary Structures. Show Answer Correct Answer: A) Homologous Structures. 9. The dependency of organisms in an environment. A) Competition. B) Natural Selection. C) Fitness. D) Adaptation. Show Answer Correct Answer: A) Competition. 10. Which scientist traveled to the Galapagos Islands? A) Jean Baptist Lamarck. B) Alfred Russel Wallace. C) Charles Darwin. D) None of the above. Show Answer Correct Answer: C) Charles Darwin. 11. Small changes in Hox gene activity during embryological development can produce large changes in adult animals. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. This event suggested to Charles Darwin that continents and oceans had changed dramatically over time and continue to change in dramatic ways. A) A typhoon. B) An earthquake. C) All the above. D) None of the above. Show Answer Correct Answer: B) An earthquake. 13. Where do adaptations come from? A) The individual organism decides to adapt. B) Mutations that give an organism an advantage in its environment. C) Genetic recombination during meiosis. D) Both mutations and genetic recombination are sources of adaptation. Show Answer Correct Answer: D) Both mutations and genetic recombination are sources of adaptation. 14. Phylogenetic trees show ..... A) Evolutionary relationships between different species. B) How one species has evolved through time. C) Which species has evolved the most. D) Which species have evolved from other species. Show Answer Correct Answer: A) Evolutionary relationships between different species. 15. What is happening because bacteria became more resistant to antibiotics. A) Bacteria are dying out. B) Humans are increasing in population. C) Antibiotics are becoming weaker. D) Bacteria are starting to multiply and grow. Show Answer Correct Answer: D) Bacteria are starting to multiply and grow. 16. How does comparative embryology support the theory of evolution? A) By showing that embryos of different species look completely different. B) By demonstrating that embryos of different species have similar stages of development. C) By proving that all embryos develop into the same species. D) By indicating that embryonic development is random. Show Answer Correct Answer: B) By demonstrating that embryos of different species have similar stages of development. 17. Structures that are similar in different species of common ancestry is ..... A) Common descent. B) Analogous structures. C) Homologous structures. D) None of the above. Show Answer Correct Answer: C) Homologous structures. 18. The separation of a group of individuals from the rest of the population is referred to as A) Genetic drift. B) Natural selection. C) Geographic isolation. D) Survival of the fittest. Show Answer Correct Answer: C) Geographic isolation. 19. What type of sequences are used to compare distantly related species? A) DNA sequences. B) RNA sequences. C) Amino acid sequences. D) Carbohydrate sequences. Show Answer Correct Answer: C) Amino acid sequences. 20. What was the name of the scientist who had the theory of evolution? A) Lamarck. B) Einstein. C) Washington. D) Darwin. Show Answer Correct Answer: D) Darwin. 21. Scientists believe that three species of lizards living on the Canary Islands descended from a common ancestor. Similarities in which of the following would most strongly support the scientists' theory? A) Body size. B) Main diet. C) Population sizes. D) Amino acid sequences. Show Answer Correct Answer: D) Amino acid sequences. 22. Genetic sequences in one organism that closely resemble those of another suggest a A) Coincidence. B) Convergent evolution. C) Shared ancestry. D) Lack of evolutionary relationship. Show Answer Correct Answer: C) Shared ancestry. 23. Refers to the genetic heritage passed down by our biological parents. It's why we look like them! More specifically, it is the transmission of traits from one generation to the next. These traits can be physical, such as eye colour, blood type or a disease, or behavioural. A) Heredity. B) Gregor Mendel. C) James Watson and Francis Crick. D) Chromosomes. Show Answer Correct Answer: A) Heredity. 24. How did Darwin's finches help support his theory of evolution? A) The finches all lived on different islands. B) Only the largest birds had survived on the island, while the smaller ones went extinct. C) The birds were different colors, which allowed for camouflage in different habitats. D) The size and shape of their beaks varied due to the different environments they lived. Show Answer Correct Answer: D) The size and shape of their beaks varied due to the different environments they lived. 25. Which scientist is responsible for the idea of transformation? A) Darwin. B) Lamarck. C) Lyell. D) Wallace. Show Answer Correct Answer: B) Lamarck. ← 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