This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the main concept described by Charles Darwin's theory of evolution? A) Use and disuse causes transformation. B) Inherited variation will lead to selection. C) Traits are acquired through habitual use. D) Species do not change over time. Show Answer Correct Answer: B) Inherited variation will lead to selection. 2. The study of the similarities and differences in the embryos of different species. Similarities in embryos are likely to be evidence of common ancestry. A) Comparative Anatomy. B) Comparative Embryology. C) Atavistic Structures. D) Vestigial structures. Show Answer Correct Answer: B) Comparative Embryology. 3. The first life-forms to appear on Earth were most likely A) Complex single-celled organisms. B) Complex multicellular organisms. C) Simple single-celled organisms. D) Simple multicellular organisms. Show Answer Correct Answer: C) Simple single-celled organisms. 4. Are traits that have evolved in response to selective pressures in an organism's environment. These can be physical features, behaviors, or physiological processes that allow an organism to survive and reproduce in its particular ecological niche. A) Biodiversity. B) Adaptations. C) Phylogenetics. D) Evolutionary processes. Show Answer Correct Answer: B) Adaptations. 5. The remains or evidence of a once-living organism A) Geology. B) Evolution. C) Embryo. D) Fossil. Show Answer Correct Answer: D) Fossil. 6. Which best describes radiometric dating? A) Using instruments that detect radioactivity to figure out how old something is. B) Measuring the relative amounts of a radioactive isotope and a daughter product to figure out the age of a sample. C) Measuring how quickly the different radioactive isotopes in a sample decay to figure out the age of the sample. D) Using short-wavelength electromagnetic radiation to determine the age of a sample. Show Answer Correct Answer: B) Measuring the relative amounts of a radioactive isotope and a daughter product to figure out the age of a sample. 7. Why do all dogs have the common ancestor of a wolf? A) Divergent evolution. B) Convergent evolution. C) Hybridization. D) None of the above. Show Answer Correct Answer: A) Divergent evolution. 8. The relationship between all the organisms on Earth that have descended from a common ancestor, whether they are extinct or extant. A) Phylogeny. B) Phyolem. C) Cladogram. D) Allele frequency. Show Answer Correct Answer: A) Phylogeny. 9. Which kind of a structure is it? A bird's wing and a human forearm A) Homologous. B) Analogous. C) Vestigial. D) Pharygeal Pouch. Show Answer Correct Answer: A) Homologous. 10. In a Cladogram each line represents a ..... A) Lineage. B) Branch. C) Organism. D) Population. Show Answer Correct Answer: A) Lineage. 11. Why do complex organisms have an even number of chromosomes? A) Genes are present in even numbers. B) Organisms get one chromosome from each parent. C) Organisms are made up of an even number of cells. D) It is just by chance. E) It is just by luck. Show Answer Correct Answer: B) Organisms get one chromosome from each parent. 12. A phenotype that improves an organism's chance of survival in their environment is considered a(n) ..... A) Natural selection. B) Adaption. C) Speciation. D) None of the above. Show Answer Correct Answer: B) Adaption. 13. Before the Industrial Revolution, which type of moth was more common? A) Light-colored moths. B) Dark-colored moths. C) All the above. D) None of the above. Show Answer Correct Answer: A) Light-colored moths. 14. What kind of a structure is it? A fish's gills and our lungs A) Homologous. B) Analogous. C) Vestigial. D) Heterozygous. Show Answer Correct Answer: A) Homologous. 15. When a population develops a different genetic makeup that is not reflective of the majority of other populations of the same species. The change is unrelated to evolution. A) Genetic Drift. B) Natural Selection. C) Population Bottleneck. D) Founder Effect. Show Answer Correct Answer: A) Genetic Drift. 16. Insects become resistant to pesticides very quickly, sometime in one generation. If an insect is resistant to the chemical, most of the offspring will also be resistant. Considering that insect generations can be a matter of weeks, insects in an area can become immune to a chemical within months. A) Mutation. B) Natural Selection. C) Genetic Drift. D) Gene Flow. Show Answer Correct Answer: B) Natural Selection. 17. Camouflaged animals have an advantage over other animals by A) Not being seen by visual predators. B) Climbing trees and hiding. C) Being able to reflect sunlight better. D) Moving away from predators faster. Show Answer Correct Answer: A) Not being seen by visual predators. 18. This is a pattern of natural selection where one extreme form of a trait is more advantageous than the average or the opposite extreme; as a result, this trait in the population tends to evolve towards that one extreme A) Directional selection. B) Disruptive selection. C) Stabilizing selection. D) Forward selection. Show Answer Correct Answer: A) Directional selection. 19. What are sexual selection? A) Sexual selection is a form of natural selection in whichindividuals with certain traits are more likely than otherindividuals to obtain mates. B) Sexual selection is a method used in agriculture to improve crop yields. C) Sexual selection is a type of natural disaster that affects ecosystems. D) Sexual selection is a theory in chemistry that explains how atoms bond. Show Answer Correct Answer: A) Sexual selection is a form of natural selection in whichindividuals with certain traits are more likely than otherindividuals to obtain mates. 20. Based on the evidence of comparative anatomy, what conclusion can be drawn about the relationship between humans and other primates? A) Humans and other primates share a common ancestor. B) ) Humans evolved from modern primates. C) Humans and other primates evolved independently. D) Humans are not related to other primates. Show Answer Correct Answer: A) Humans and other primates share a common ancestor. 21. What does structural evidence for evolution demonstrate? A) Genetic modification. B) Common ancestry. C) Artificial selection. D) Phenotypic variation. Show Answer Correct Answer: B) Common ancestry. 22. A ..... can be used to classify organisms based on characteristics. A) Punnet square. B) Phylogenetic chart. C) Trophic pyramid. D) Dichotomous key. Show Answer Correct Answer: D) Dichotomous key. 23. What is an example of Variation? A) Change over time around the world. B) A large amount of people dying around the world. C) Different types of dinosaurs. D) Differences that exist natural through a population or species. Show Answer Correct Answer: D) Differences that exist natural through a population or species. 24. When farmers select the largest hogs, the fastest horses, or the cows that produce the most milk for breeding it is called ..... A) Natural selection. B) Artificial selection. C) Survival of the fittest. D) Homologous variation. Show Answer Correct Answer: B) Artificial selection. 25. In which location would a population most likely be geographically isolated? A) An island. B) A river. C) A wetland. D) A rain forest. Show Answer Correct Answer: A) An island. ← 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