This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 38 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 38 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A farmer's use of the best livestock for breeding is an example of A) Natural selection. B) Artificial selection. C) Extinction. D) Adaptation. Show Answer Correct Answer: B) Artificial selection. 2. Ability of an organism to survive and reproduce in its environment. A) Adaptation. B) Analogous structures. C) Co-evolution. D) Fitness. Show Answer Correct Answer: D) Fitness. 3. A remnant or trace of an organism from the past such as a bone found buried in the earth called a ..... A) Ancestor. B) Skeleton. C) Fossil. D) Imprints. Show Answer Correct Answer: C) Fossil. 4. ..... is the fact that organisms change over time and are related through common ancestors. A) Homologous Structures. B) Hereditary. C) Evolution. D) Survival of the fittest. Show Answer Correct Answer: C) Evolution. 5. During a class discussion, Alex and Salyse were talking about the role of native species like the Florida Panther in Florida's ecosystems. What effect do these native species have on the population of herbivores? A) Increase the number of herbivores. B) Control and reduce the population of herbivores. C) Have no impact on herbivore populations. D) Cause herbivores to migrate to other areas. Show Answer Correct Answer: B) Control and reduce the population of herbivores. 6. Gradual change in a population through adaptations over time. A) Migration. B) Directional selection. C) Evolution. D) Speciation. Show Answer Correct Answer: C) Evolution. 7. Which of the following is NOT a requirement for Hardy-Weinberg equilibrium? A) Small population. B) No gene flow. C) No mutations. D) No selection. Show Answer Correct Answer: A) Small population. 8. According to Lamarck's theory of acquired traits, evolution occurs: A) In warm blooded animals only. B) In cold blooded animals only. C) In individuals. D) In populations. Show Answer Correct Answer: C) In individuals. 9. A taxonomic category that names a group of similar, closely related organisms A) Species. B) Classification. C) Genus. D) Taxonomy. Show Answer Correct Answer: C) Genus. 10. What is the bottleneck effect? A) A reduction in genetic diversity due to a large population size. B) An increase in genetic diversity due to a small population size. C) A reduction in genetic diversity due to a small population size. D) An increase in genetic diversity due to a large population size. Show Answer Correct Answer: C) A reduction in genetic diversity due to a small population size. 11. What is the term used to describe the movement of alleles between populations? A) Genetic drift. B) Gene flow. C) Natural selection. D) Mutation. Show Answer Correct Answer: B) Gene flow. 12. Which significant change can occur to a small population as a result of genetic drift? A) The Hardy-Weinberg equilibrium will not equal 1. B) Recessive traits always become dominant. C) New individuals add their genes to the gene pool. D) Large changes in allele frequencies can occur in a short time. Show Answer Correct Answer: D) Large changes in allele frequencies can occur in a short time. 13. How do fossils support evolution? A) The fossil record provides evidence that organisms have changed over time. B) Individual species disappear and reappear in the fossil record over time. C) The fossil record provides evidence that all organisms developed at the same time. D) Organisms in the fossil record are identical to living organisms. Show Answer Correct Answer: A) The fossil record provides evidence that organisms have changed over time. 14. What happens to an ecosystem if a keystone species is removed? A) The ecosystem remains unchanged. B) The ecosystem becomes more stable. C) The ecosystem may collapse or change drastically. D) New keystone species quickly replace the old one. Show Answer Correct Answer: C) The ecosystem may collapse or change drastically. 15. During a school trip to Florida, Alondra and Carl learned that the Gopher Tortoise creates burrows that become beneficial habitats for many other species, making it ..... A) An Invasive Species. B) An Indicator Species. C) A Non-native Species. D) A Keystone Species. Show Answer Correct Answer: D) A Keystone Species. 16. A living thing's ability to have babies is also called ..... A) Chromosomes. B) Fitness. C) Darwin. D) None of the above. Show Answer Correct Answer: B) Fitness. 17. How living things changed over time is called ..... A) Evolution. B) Education. C) Engineering. D) None of the above. Show Answer Correct Answer: A) Evolution. 18. True or False:Natural Selection is Random A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. In a population of beetles, a mutation causes some beetles to have a green shell instead of a brown shell. If birds prefer to eat brown-shelled beetles, what is likely to happen to the green-shelled beetles over time? A) They will become extinct. B) They will become more common in the population. C) They will migrate to a new area. D) They will remain at the same frequency in the population. Show Answer Correct Answer: B) They will become more common in the population. 20. Is a scientific explanation for the diversity of life on Earth. It proposes that all living things share a common ancestor and have evolved over time through a process of descent with modification. This process is driven by natural selection, which favors individuals with advantageous traits that allow them to survive and reproduce more effectively than others. A) Evolution. B) Theory of Evolution. C) Theory of Transformism. D) Theory of Seperate Creation. Show Answer Correct Answer: B) Theory of Evolution. 21. ..... is the era of ancient life A) Archaeozoic. B) Proterozoic. C) Paleozoic. D) Azoic. Show Answer Correct Answer: C) Paleozoic. 22. When he returned to England, Darwin based much of his evolutionary theory on differences among Galapagos A) Iguanas. B) Tortoises. C) Finches. D) Beetles. Show Answer Correct Answer: C) Finches. 23. An evolutionary pattern in which many species evolve from a single ancestral species A) Embryology. B) Adaptive radiation. C) Extinction. D) Co-evolution. Show Answer Correct Answer: B) Adaptive radiation. 24. The early cell types which were formed on the earth, were ..... A) Aerobic, autotrophic. B) Anaerobic, autotrophic. C) Anaerobic, heterotrophic. D) Aerobic, heterotrophic. Show Answer Correct Answer: C) Anaerobic, heterotrophic. 25. Which of the following is evidence to support the idea that two different species might have a common ancestor? A) Their fossils were discovered in the same location. B) Many of their genes are the same. C) Their method of respiration are alike. D) They use the same means of locomotion. Show Answer Correct Answer: B) Many of their genes are the same. ← 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