This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does the "Sonic Hedgehog" gene do? A) Repeat spine vertebrae. B) Create digits on hands and feet. C) Turns off genes. D) Causes mutations. Show Answer Correct Answer: B) Create digits on hands and feet. 2. The preserved remains or trace of an organism that was once living A) Fossil. B) Rock Strata. C) Stratigraphy. D) Fossil Record. Show Answer Correct Answer: A) Fossil. 3. What is the primary mechanism by which evolution occurs according to Darwin's theory? A) Genetic drift. B) Natural selection. C) Artificial selection. D) Gene flow. Show Answer Correct Answer: B) Natural selection. 4. These notes were taken during a class about biological evolution, but the subject title is missing.-results from immigration-new genes brought into a population-variation in a population increasesWhat do the notes describe? A) Gene flow. B) Natural selection. C) Genetic drift. D) Mutation. Show Answer Correct Answer: A) Gene flow. 5. Which piece of evidence BEST supports the endosymbiotic theory of organelle evolution? A) Mitochondria and chloroplast are the same size as present day extant bacteria. B) They divide by a process that is similar to meiosis. C) Mitochondria and chloroplast both contain DNA and can make their own proteins. D) None of the above. Show Answer Correct Answer: C) Mitochondria and chloroplast both contain DNA and can make their own proteins. 6. What is the movement of genes into and out of a gene pool called? A) Random mating. B) Nonrandom mating. C) Gene flow. D) Direct evolution. Show Answer Correct Answer: C) Gene flow. 7. Populations ..... over time. Individual organisms can not, and this process takes a very long time. A) Analogous Structure. B) Fitness. C) Speciation. D) Founder Effect. E) Evolution. Show Answer Correct Answer: E) Evolution. 8. Remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species. (Hip bone in whales) A) Homologous structure. B) Analogous structure. C) Vestigial structure. D) None of the above. Show Answer Correct Answer: C) Vestigial structure. 9. Darwin noticed differences among living things in certain patterns that was explained as ..... A) Mutations. B) Heritable Traits. C) Biological Diversity. D) Selective breeding. Show Answer Correct Answer: C) Biological Diversity. 10. The changes of species over time A) Embryonic. B) Natural selection. C) Mimicry. D) Evolution. Show Answer Correct Answer: D) Evolution. 11. Natural selection is A) Survival of the fittest. B) Humans change. C) Two species are the same. D) More animals survive. Show Answer Correct Answer: A) Survival of the fittest. 12. Which of the following statements is true about the Earth according to fossil evidence? A) The Earth has always been the same. B) The Earth has changed over time. C) The Earth is shrinking. D) The Earth is expanding. Show Answer Correct Answer: B) The Earth has changed over time. 13. Which of the following best describes the concept of 'survival of the fittest' in evolutionary biology? A) The strongest individuals in a population are the most likely to survive and reproduce. B) Individuals that are best adapted to their environment are more likely to survive and reproduce. C) Only the largest individuals in a population will survive and reproduce. D) Survival is purely a matter of chance, with no influence from an individual's traits. Show Answer Correct Answer: B) Individuals that are best adapted to their environment are more likely to survive and reproduce. 14. What government agency studies the spread of antibiotic resistant bacteria? A) CDC. B) FBI. C) DOE. D) NASA. Show Answer Correct Answer: A) CDC. 15. Which part of the theory of evolution suggests that all living things evolved from a single ancestor? A) Gradualism. B) Multiplication of species. C) Common descent. D) Perpetual change. Show Answer Correct Answer: C) Common descent. 16. What is gene flow? A) Mutation of genetic material in a population. B) Movement of genes within a single population. C) Exchange of genetic information between individuals. D) Transfer of genetic material between populations. Show Answer Correct Answer: D) Transfer of genetic material between populations. 17. Which statement is most closely related to the modern theory of evolution? A) Characteristics that are acquired during life are passed to offspring by sexual reproduction. B) Evolution is the result of mutations and recombination only. C) Organisms best adapted to a changed environment are more likely to reproduce and pass their genes to offspring. D) Asexual reproduction increases the survival of species. Show Answer Correct Answer: C) Organisms best adapted to a changed environment are more likely to reproduce and pass their genes to offspring. 18. Which statement provides evidence that mitochondria MOST likely evolved when a primitive eukaryotic cell engulfed a prokaryotic bacteria? A) Both mitochondria and bacteria have a circular DNA molecule. B) Both mitochondria and bacteria have the same type of ribosomes. C) Both mitochondria and bacteria have a double-membrane nucleus. D) Both mitochondria and bacteria have the same amount of cytoplasm. Show Answer Correct Answer: A) Both mitochondria and bacteria have a circular DNA molecule. 19. How well an organism can survive its enviornment A) Adaptation. B) Fitness. C) Variation. D) None of the above. Show Answer Correct Answer: B) Fitness. 20. Which group did birds evolve out of? A) Mammals. B) Insects. C) Bats. D) Dinosaurs. Show Answer Correct Answer: D) Dinosaurs. 21. Dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness A) Fitness. B) Evolution. C) Adaptation. D) Natural Selection. Show Answer Correct Answer: C) Adaptation. 22. Evolution is still occurring today in organisms around the world. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. Which of the following is the most recent era of time-the one that we arecurrently in? A) Mesozoic. B) Cenozoic. C) Precambrian. D) Paleozoic. Show Answer Correct Answer: B) Cenozoic. 24. Which of the following is NOT a reason why fossils are important? A) They show evidence of past life. B) They help understand Earth's history. C) They predict future weather. D) They indicate changes over time. Show Answer Correct Answer: C) They predict future weather. 25. Who coined the phrase, "The present is key to the past." ? A) Charles Darwin. B) Sir Charles Lyell. C) Thomas Malthus. D) Dr. Jay WIle. Show Answer Correct Answer: B) Sir Charles Lyell. ← 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 9Class 12 Biology Chapter 7 Evolution Quiz 10Class 12 Biology Chapter 7 Evolution Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books