This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The 8 levels of classification, from most broad to most specific, are A) Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species. B) Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order. C) Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. D) Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus. Show Answer Correct Answer: C) Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. 2. Natural selection would select for: A) Better camouflage for hiding. B) Bigger, redder, neck sack to attract females. C) Bigger antlers to beat up other deer. D) Loss of alleles. Show Answer Correct Answer: A) Better camouflage for hiding. 3. What was probably the first organism on Earth? A) Plants. B) Bacteria. C) Alligators. D) Fish. Show Answer Correct Answer: B) Bacteria. 4. Adaptations can be: A) Camouflage. B) Ability to survive cold weather. C) Hunting skills. D) All of the above. Show Answer Correct Answer: D) All of the above. 5. The mole rat is an animal with long claws and teeth for digging deep holes. Scientists think the ancestors of the mole rat lived above ground and had shorter claws and teeth. Which of the following processes resulted in the long claws and teeth that are traits of the mole rat? A) Natural selection. B) Selective breeding. C) Genetic engineering. D) Asexual reproduction. Show Answer Correct Answer: A) Natural selection. 6. Which of these are main ideas in Darwin's Theory of Evolution? A) Species are static, unable to change. B) Evolution occurs, organisms change over time. and natural selection is what causes evolution. C) All the above. D) None of the above. Show Answer Correct Answer: B) Evolution occurs, organisms change over time. and natural selection is what causes evolution. 7. Bacterial growth is A) Fast. B) Slow. C) All the above. D) None of the above. Show Answer Correct Answer: A) Fast. 8. According to ..... mutation is a misprint of cell division A) Darwin. B) Dobzhansky. C) Lamark. D) Spencer. Show Answer Correct Answer: B) Dobzhansky. 9. When a population becomes better suited to its habitat A) Adaptation. B) Adaptive radiation. C) Variation. D) Gene pool. Show Answer Correct Answer: A) Adaptation. 10. ..... is the evolutionary history of a group of related organisms. A) Phylogeny. B) Cladistics. C) All the above. D) None of the above. Show Answer Correct Answer: A) Phylogeny. 11. The combination of alleles, situated on corresponding chromosomes, that determines a specific trait of an individual, such as "Aa" or "aa" . A) Genotype. B) Phenotype. C) Mutation. D) Gene Flow. Show Answer Correct Answer: A) Genotype. 12. Video Click HereHow do transitional fossils and forms support the theory of evolution? A) Transitional forms show descent with modification and change. B) DNA can be reliably taken from very old fossils. C) We can find every transitional form that was ever made. D) Transitional forms do not support the theory of evolution. Show Answer Correct Answer: A) Transitional forms show descent with modification and change. 13. This is a group of organisms that includes an ancestor and all of its descendants A) Evolution. B) Clade. C) All the above. D) None of the above. Show Answer Correct Answer: B) Clade. 14. Animals are born with their adaptations due to genes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Which period belongs to the Paleozoic era and not the Cenozoic era? A) Devonian. B) Neogene. C) Paleogene. D) Quaternary. Show Answer Correct Answer: A) Devonian. 16. Remains are a type of ..... A) French toast. B) Fossil. C) Darwin. D) None of the above. Show Answer Correct Answer: B) Fossil. 17. Earth's early atmosphere had no A) Gasses. B) Volcanoes. C) Water vapor. D) Free oxygen. Show Answer Correct Answer: D) Free oxygen. 18. Two clades that emerge from the same node are ..... A) Sister taxa. B) Family taxa. C) Relative taxa. D) None of the above. Show Answer Correct Answer: A) Sister taxa. 19. Based upon the conditions of the early Earth, which forms of live most likely appeared first? A) Prokaryotic and aerobic. B) Prokaryotic and anaerobic. C) Eukaryotic and aerobic. D) Eukaryotic and anaerobic. Show Answer Correct Answer: B) Prokaryotic and anaerobic. 20. Evolution is considered to be one of the most important theories in science, because it A) Was developed more than 100 years ago. B) Is not supported by the fossil record. C) Unites the fields of biology, geology, chemistry, and ecology. D) None of the above. Show Answer Correct Answer: C) Unites the fields of biology, geology, chemistry, and ecology. 21. Relating to origin is known as A) Natural selection. B) Trait. C) Fossil. D) Genetic. Show Answer Correct Answer: D) Genetic. 22. Similar structures that are shared by related species and that have been inherited from a common ancestor are called- A) Analogous structures. B) Vestigial structures. C) Evolutionary structures. D) Homologous structures. Show Answer Correct Answer: D) Homologous structures. 23. Evolution is a A) Law. B) Theory. C) Hypothesis. D) Conclusion. Show Answer Correct Answer: B) Theory. 24. Which of the following best describes a keystone species in an ecosystem? A) A species that is the most abundant in the ecosystem. B) A species that has a disproportionately large impact on its environment relative to its abundance. C) A species that is the primary producer in the ecosystem. D) A species that is the top predator in the ecosystem. Show Answer Correct Answer: B) A species that has a disproportionately large impact on its environment relative to its abundance. 25. Which of the following best describes the concept of natural selection? A) A process where organisms better adapted to their environment tend to survive and produce more offspring. B) A random change in the genetic makeup of an organism. C) The movement of organisms from one place to another. D) The intentional breeding of organisms to produce desired traits. Show Answer Correct Answer: A) A process where organisms better adapted to their environment tend to survive and produce more offspring. ← 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