This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Do organisms "decide" to evolve and change? A) Yes, they know they need to change to survive. B) No, they change because of natural selection. C) All the above. D) None of the above. Show Answer Correct Answer: B) No, they change because of natural selection. 2. Which of the following best describes the process of natural selection? A) Organisms change by choice to adapt to their environment. B) Organisms with favorable traits are more likely to survive and reproduce. C) All organisms in a population will eventually have the same traits. D) Traits acquired during an organism's lifetime are passed to offspring. Show Answer Correct Answer: B) Organisms with favorable traits are more likely to survive and reproduce. 3. How does the concept of continental drift relate to evolution? A) It helps explain the geographical distribution of related species. B) It disproves the theory of evolution. C) It supports the theory of uniformitarianism. D) It explains the distribution of fossil fuels. Show Answer Correct Answer: A) It helps explain the geographical distribution of related species. 4. Anatomy A) Science concerned with the bodily structure of humans, animals, and other living organisms. B) Science concerned with clothes you wear. C) Group of organisms species that biology the biological study animal definition. D) The theory that was first fully described by Charles Darwin. Show Answer Correct Answer: A) Science concerned with the bodily structure of humans, animals, and other living organisms. 5. Choose which scientist corresponds best with the statement:acquired characteristics are inherited A) Darwin. B) Lamarck. C) All the above. D) None of the above. Show Answer Correct Answer: B) Lamarck. 6. It is the ..... that is selected for/against survival, not the ..... A) Phenotype, Genotype. B) Genotype, Phenotype. C) Phenotype, Phenotype. D) Genotype, Genotype. Show Answer Correct Answer: A) Phenotype, Genotype. 7. What is the primary mechanism that drives evolution according to Darwin's theory? A) Genetic drift. B) Mutation. C) Natural selection. D) Gene flow. Show Answer Correct Answer: C) Natural selection. 8. Which of the following is an example of a vestigial structure? A) The fins of a shark. B) The tailbone of a human. C) The hind limbs of a house cat. D) The wings of a red-tailed hawk. Show Answer Correct Answer: B) The tailbone of a human. 9. Sickle-cell anemia is associated with a mutation in the red blood cells that changes the shape. Scientists think this is an evolutionary response to exposure to malaria. People who are heterozygous for this allele are less likely to get malaria if they are bitten by a mosquito carrying the disease. This change in variation is called a ..... A) Mutation. B) Response. C) Migration. D) Phenotype. Show Answer Correct Answer: A) Mutation. 10. Scientists compare organisms' DNA to support the theory that all species share a common ..... A) Separation. B) Ancestor. C) Population. D) Environment. Show Answer Correct Answer: B) Ancestor. 11. Mutation is? A) A new type of computer. B) A type of weather phenomenon. C) A change in the DNA sequence of an organism. D) A type of flower. Show Answer Correct Answer: C) A change in the DNA sequence of an organism. 12. What is a collection of all the alleles in a population? A) Allele Collection. B) Gene Pool. C) Species. D) Relative Frequency. Show Answer Correct Answer: B) Gene Pool. 13. What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland? A) There were different types of predators on the island. B) There were different types of food available on the island. C) The finches had no water to drink. D) The finches on the mainland could not fly high enough. Show Answer Correct Answer: B) There were different types of food available on the island. 14. ..... :The distribution of species on earth (past and present) A) Biogeography. B) Fossil Record. C) Habitat Isolation. D) None of these. Show Answer Correct Answer: A) Biogeography. 15. Which of the following is evidence to support the endosymbiotic theory? A) Mitochondria and chloroplasts have their own DNA, which is similar to prokaryotic DNA. B) Fossil evidence shows that the first forms of life were prokaryotic cells. C) All eukaryotic cells have a double-layered membrane composed of phosplipids and proteins. D) Prokaryotes have the same number and types of enzymes as eukaryotes. Show Answer Correct Answer: A) Mitochondria and chloroplasts have their own DNA, which is similar to prokaryotic DNA. 16. Different ancestor, similar function, different structure A) Homologous structures. B) Vestigial structures. C) Analogous structures. D) Speciation. Show Answer Correct Answer: C) Analogous structures. 17. A scientist puts 100 houseflies in a sealed container; then sprays an insecticide into the container. Ninety-six of the flies die. Four survive. The scientist lets the survivors mate and produce offspring, then repeats the experiment with 100 offspring. Fifty-six of them survive the spray. This experimental result is evidence of- A) Adaptive radiation. B) Speciation. C) Natural selection. D) Extinction. Show Answer Correct Answer: C) Natural selection. 18. Male northern elephant seals fight with one another once a year. Unsuccessful males are less likely to mate than successful males. This is an example of which of the following? A) Adaptive radiation. B) Homology. C) Analogy. D) Sexual selection. Show Answer Correct Answer: D) Sexual selection. 19. Wolves eating brown furred rabbits in preference to white furred rabbits in the arctic is an example of A) Evolution-rabbit change over generations. B) Speciation-a new species of rabbits is formed. C) Selection pressure-a visual predator. D) Mutation-causing different fur. Show Answer Correct Answer: C) Selection pressure-a visual predator. 20. Which of the following is an example of natural selection? A) A farmer breeding cows for more milk production. B) A giraffe's neck becoming longer over generations to reach higher leaves. C) A scientist genetically modifying bacteria. D) A dog learning a new trick. Show Answer Correct Answer: B) A giraffe's neck becoming longer over generations to reach higher leaves. 21. This mechanism of evolution occurs when individuals migrate between populations. A) Extinction. B) Gene flow. C) Genetic drift. D) Natural Selection. Show Answer Correct Answer: B) Gene flow. 22. The genetic code is essentially the same for all organisms. From this, one can logically assume all of the following except A) A gene from an organism could theoretically be expressed by any other organism. B) All organisms have a common ancestor. C) DNA was the first genetic material. D) The same codons in different organisms usually translate into the same amino acids. Show Answer Correct Answer: C) DNA was the first genetic material. 23. Which of the following is the best evidence that mammals evolved from reptiles? A) Similarities in the diets of extinct reptiles and modern mammals. B) Similarities in the average lifespans of modern reptile and modern mammals. C) Fossils of ancient reptiles and mammals that appear together in the same layers of rock. D) None of the above. Show Answer Correct Answer: C) Fossils of ancient reptiles and mammals that appear together in the same layers of rock. 24. To determine phylogenetic relationships, scientists use a variety of techniques and sources. Examples of this include comparing fossils, bone structures, behavior and molecular biology. Which of the following hypothesis could be tested using these techniques? A) Gas exchange in different organisms differ. B) Life began in the pacific ocean. C) Evidence of common ancestors can be determined. D) Predator and prey relationships can be determined. Show Answer Correct Answer: C) Evidence of common ancestors can be determined. 25. The surroundings and conditions in which an organism lives and operates. A) Evolution. B) Population. C) Environment. D) Biological diversity. Show Answer Correct Answer: C) Environment. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books