This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which factors affect natural selection? A) Inheritance, isolation, adaptation. B) Variation, overpopulation, adaptation. C) Isolation, overpopulation, speciation. D) Variation, inheritance, speciation. Show Answer Correct Answer: B) Variation, overpopulation, adaptation. 2. Are a major group of animals that includes a diverse array of species, including chordates (vertebrates and their close relatives), echinoderms (such as sea stars and sea urchins), and hemichordates (such as acorn worms). A) Mammals. B) Deuterostomes. C) Amniotes. D) Fish. Show Answer Correct Answer: B) Deuterostomes. 3. Which of the following scenarios is an example of convergent evolution? A) The development of wings in both bats and birds. B) The evolution of different beak shapes in Darwin's finches. C) The presence of gills in both fish and amphibians. D) The development of similar camouflage patterns in unrelated species. Show Answer Correct Answer: A) The development of wings in both bats and birds. 4. How can high genetic variability within a population impact its ability to survive environmental changes? A) It makes the population more vulnerable to diseases. B) It decreases the population's adaptability. C) It increases the likelihood of survival and adaptation. D) It reduces the chances of new mutations. Show Answer Correct Answer: C) It increases the likelihood of survival and adaptation. 5. Grouped, longest geologic subdivision A) Epoch. B) Era. C) Period. D) Eon. Show Answer Correct Answer: D) Eon. 6. Individuals with favorable traits survive, reproduce, and pass their traits onto their offspring. This is called A) Mutation. B) Adaptation. C) Evolution. D) Natural Selection. Show Answer Correct Answer: D) Natural Selection. 7. Which scientist is credited with coming up with the theory of natural selection? A) Charles Darwin. B) Gregor Mendel. C) Isaac Newton. D) Albert Einstein. Show Answer Correct Answer: A) Charles Darwin. 8. 1 color lizard develops adaptation, is fit for the environment and survives. This is an example A) Variation and adaptation. B) Struggle for exsistence. C) Survival of the fittest. D) None of the above. Show Answer Correct Answer: C) Survival of the fittest. 9. In members of bird species living on a remote island, the greatest number of beaks variations in the population would most likely be found when A) There is a high level of competition for limited resources. B) Homeostasis is limited by a severe climate. C) They have a large and varied food supply. D) They are prey for a large numbers of predators. Show Answer Correct Answer: C) They have a large and varied food supply. 10. Which of the following is an example of gene flow? A) A subordinate wolf successfully challenges the alpha male and mates with pack females. B) A deer picks up spores from a plant as it grazes and deposits them next to that plant. C) A young stallion is driven out of its herd by the alpha stallion and begins its own herd in another location. D) All of these answers. Show Answer Correct Answer: C) A young stallion is driven out of its herd by the alpha stallion and begins its own herd in another location. 11. Nature selects the variations that are most useful. This is known as ..... A) Natural selection. B) Fitness. C) All the above. D) None of the above. Show Answer Correct Answer: A) Natural selection. 12. What evidence supports the theory that continents were once a large landmass? A) The continents share a similar climate. B) Similar fossils have been found on different continents. C) Minerals like gold and copper are found worldwide. D) Coconut trees are found on coastlines. Show Answer Correct Answer: B) Similar fossils have been found on different continents. 13. Studying the development of ..... can provide scientists with evidence that certain species are related. A) Fish. B) Embryos. C) Tiktaalik. D) Vestigial structures. Show Answer Correct Answer: B) Embryos. 14. How does genetic drift affect a population? A) It causes random changes in allele frequencies, which can lead to significant changes in small populations. B) It increases genetic variation by introducing new alleles. C) It decreases genetic variation by removing alleles. D) It has no effect on allele frequencies. Show Answer Correct Answer: A) It causes random changes in allele frequencies, which can lead to significant changes in small populations. 15. Who proposed the idea that all species are descended from common ancestors, a concept that laid the foundation for Darwin's theory of evolution? A) Gregor Mendel. B) Charles Darwin. C) Isaac Newton. D) Marie Curie. Show Answer Correct Answer: B) Charles Darwin. 16. A situation in which allele frequencies of the a population remains constant is called ..... A) Stasis. B) Fitness. C) Competition. D) Natural Selection. Show Answer Correct Answer: A) Stasis. 17. Which of the following best describes the concept of 'molecular clock' in evolutionary biology? A) A method to determine the age of fossils using radioactive isotopes. B) A technique to estimate the time of divergence between species based on genetic mutations. C) A process by which organisms adapt to their environment over time. D) A tool to measure the rate of photosynthesis in plants. Show Answer Correct Answer: B) A technique to estimate the time of divergence between species based on genetic mutations. 18. The most specific classification, a group that mates to produce offspring A) Genus. B) Fossils. C) Species. D) Speciation. Show Answer Correct Answer: C) Species. 19. What role does genetic drift play in evolution? A) It ensures that beneficial traits are passed on to the next generation. B) It changes a population's genetic makeup due to random chance events. C) It causes populations to become more similar over time. D) It increases the rate of mutation in a population. Show Answer Correct Answer: B) It changes a population's genetic makeup due to random chance events. 20. When nature selects what gene are passed on A) Natural selection. B) Artificial selection. C) Evolution. D) Adaptations. Show Answer Correct Answer: A) Natural selection. 21. The wing of a bee and the wing of a bird are considered to be- A) Vestigial structures. B) Homologous structure. C) Analogous structures. D) Evolutionary structures. Show Answer Correct Answer: C) Analogous structures. 22. The Galapagos finches are a group of closely related species of birds. Over time, specialized beaks have evolved for each species in new environments. This is an example of which of the following? A) Adaptive radiation. B) Coevolution. C) Co-option. D) Sexual selection. Show Answer Correct Answer: A) Adaptive radiation. 23. A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce. A) Species. B) Domain. C) Genus. D) Taxonomy. Show Answer Correct Answer: A) Species. 24. Which scientific name is TYPED correctly A) Carcharhinus melanopterus. B) Carcharhinus Melanopterus. C) Carcharhinus melanopterus. D) Carcharhinus melanopterus. Show Answer Correct Answer: A) Carcharhinus melanopterus. 25. The establishment of a genetically unique population through genetic drift A) Adaptive radiation. B) Divergent evolution. C) Founder effect. D) Convergent evolution. Show Answer Correct Answer: C) Founder effect. ← 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