This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 7 Evolution – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The changes of species over time A) Evolution. B) Mimicry. C) Embryonic. D) Natural selection. Show Answer Correct Answer: A) Evolution. 2. Natural selection is A) More animals survive. B) Humans change. C) Survival of the fittest. D) Two species are the same. Show Answer Correct Answer: C) Survival of the fittest. 3. 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. 4. 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. 5. What government agency studies the spread of antibiotic resistant bacteria? A) DOE. B) FBI. C) CDC. D) NASA. Show Answer Correct Answer: C) CDC. 6. Which part of the theory of evolution suggests that all living things evolved from a single ancestor? A) Common descent. B) Perpetual change. C) Multiplication of species. D) Gradualism. Show Answer Correct Answer: A) Common descent. 7. What is gene flow? A) Mutation of genetic material in a population. B) Transfer of genetic material between populations. C) Movement of genes within a single population. D) Exchange of genetic information between individuals. Show Answer Correct Answer: B) Transfer of genetic material between populations. 8. 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. 9. 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. 10. 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. 11. Which group did birds evolve out of? A) Bats. B) Insects. C) Dinosaurs. D) Mammals. Show Answer Correct Answer: C) Dinosaurs. 12. Dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness A) Adaptation. B) Evolution. C) Natural Selection. D) Fitness. Show Answer Correct Answer: A) Adaptation. 13. 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. 14. Which of the following is the most recent era of time-the one that we arecurrently in? A) Cenozoic. B) Paleozoic. C) Mesozoic. D) Precambrian. Show Answer Correct Answer: A) Cenozoic. 15. 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. 16. Who coined the phrase, "The present is key to the past." ? A) Sir Charles Lyell. B) Charles Darwin. C) Dr. Jay WIle. D) Thomas Malthus. Show Answer Correct Answer: A) Sir Charles Lyell. 17. What is the name of the book Darwin published about his findings? A) The Origins of the Earth. B) On the Origin of Species. C) Speciation. D) Modes of Natural Selection. Show Answer Correct Answer: B) On the Origin of Species. 18. Which of the following statements best explains why many different finch species originated from the single ancestral species? A) Populations adapted to environmental pressures. B) Recessive traits in populations were elimanted over time. C) Individuals acquired unique characteristics during their lifetimes. D) Random mutations caused some individuals to have harmful traits. Show Answer Correct Answer: A) Populations adapted to environmental pressures. 19. If a bacteria has the trait for resistance, which of the following is true? Hint:Offspring = Babies A) The offspring are more likely to be resistant. B) The offspring are less likely to be resistant. C) The resistance of the offspring is completely random. D) The resistance of the offspring cannot be determined. Show Answer Correct Answer: A) The offspring are more likely to be resistant. 20. Diagram that represents the evolutionary history of a group of organisms A) Evolutionary diagram. B) Branching Diagram. C) Phylogenetic trees. D) Cladogram. Show Answer Correct Answer: C) Phylogenetic trees. 21. If the allele frequency changes in a population over time, then ..... has occurred. A) Embryology. B) Evolution. C) Artificial selection. D) Adaptation. Show Answer Correct Answer: B) Evolution. 22. Which of these was a discovery that provided even more tangible evidence of Natural Selection? A) CO2. B) Phospholipids. C) Proteins. D) DNA. Show Answer Correct Answer: D) DNA. 23. What was the name of the ship Charles Darwin sailed on? A) HMS Britannia. B) HMS Beagle. C) Boaty McBoaty Face. D) HMS Bulldog. Show Answer Correct Answer: B) HMS Beagle. 24. A selection pressure can be A) A predator. B) An more attractive mate. C) Temperature or pH. D) Any of the above will do. Show Answer Correct Answer: D) Any of the above will do. 25. Darwin's expedition was called the Voyage of the ..... A) Titanic. B) Beagle. C) All the above. D) None of the above. Show Answer Correct Answer: B) Beagle. 26. Why did the population of moths change A) White moths were killed by the smoke from the factories. B) Predators were able to easily see their prey. C) Moths mood changed to sad, causing them to become dark. D) People hunted lighter colored moths. Show Answer Correct Answer: B) Predators were able to easily see their prey. 27. When did the Pangea start to drift apart? A) 150 million years ago. B) 50 million years ago. C) 175 million years ago. D) 100 million years ago. Show Answer Correct Answer: C) 175 million years ago. 28. What is a 'superbug'? A) A computer virus. B) A very large insect. C) A bacteria resistant to antibiotics. D) A new superhero. Show Answer Correct Answer: C) A bacteria resistant to antibiotics. 29. Mitochondria and chloroplasts are thought to be ..... cells engulfed by a larger one. A) Eikaryotic. B) Prokaryotic. C) Viruses. D) Plants. Show Answer Correct Answer: B) Prokaryotic. 30. Which scientist independently formulated a theory of natural selection around the same time as Darwin, prompting Darwin to publish his own work sooner than planned? A) Charles Darwin. B) Gregor Mendel. C) Louis Pasteur. D) Alfred Russel Wallace. Show Answer Correct Answer: D) Alfred Russel Wallace. 31. The species of finches that Charles Darwin found on different Galapagos Islands varied in certain structural adaptations. One of the most significant adaptations that Darwin noted was the- A) Number of eggs in each bird's nest. B) Birds' different shaped beaks. C) Length of the birds' necks. D) Similarities of the birds' embryos. Show Answer Correct Answer: B) Birds' different shaped beaks. 32. Why is genetic variability important to the health of populations and preventing extinction? Consider a scenario where Cayden and Khalila are studying a population of animals in a rapidly changing environment. A) It ensures that all individuals are identical. B) It reduces the chances of disease spreading. C) It allows populations to adapt to changing environments. D) It limits the potential for evolution. Show Answer Correct Answer: C) It allows populations to adapt to changing environments. 33. Which of the following pieces of evolution evidence deals with aged and identified fossils? A) Comparative biochemistry. B) Fossil record. C) Comparative embryology. D) Comparative anatomy. Show Answer Correct Answer: B) Fossil record. 34. Which of the following is the LEAST inclusive? A) Domain. B) Family. C) Species. D) Kingdom. Show Answer Correct Answer: C) Species. 35. The theory of inheritance of acquired characters for the organic evolution is also called ..... A) Mutation theory. B) Natural Selection theory. C) Neo-Darwinism theory. D) Use and Disuse theory. Show Answer Correct Answer: D) Use and Disuse theory. 36. The tongue of frog species X is sticky and it evolved by natural selection for trapping flying insects. Other frogs have less sticky tongues. The sticky tongue of species X is an example of A) A fossil. B) An adaptation. C) A co-opted feature. D) Adaptive radiation. Show Answer Correct Answer: B) An adaptation. 37. The theory that organisms have slowly changed over time ..... A) Relative dating. B) Adaptation. C) Fossil record. D) Evolution. Show Answer Correct Answer: D) Evolution. 38. Same Structures. Different functions. A) Homologous Structures. B) Vestigial Structures. C) Analogous Structures. D) None of the above. Show Answer Correct Answer: A) Homologous Structures. 39. Natural selection is based on all of the following except A) Genetic variation exists within populations. B) The best-adapted individuals tend to leave the most offspring. C) Individuals who survive longer tend to leave more offspring than those who die young. D) Populations tend to produce more individuals than the environment can support. E) Individuals adapt to their environments and, thereby, evolve. Show Answer Correct Answer: E) Individuals adapt to their environments and, thereby, evolve. 40. Which part of Darwin's theory of evolution may be used to describe the results of when lions prey on antelope? A) Variation in species. B) Adaptation to environment. C) Natural selection. D) Survival of the fittest. Show Answer Correct Answer: D) Survival of the fittest. 41. What evidence of natural selection is available today that was NOT available to Darwin? A) Organisms inherit traits. B) Differences in genes create variation. C) There is great variation among organisms. D) Humans can breed organisms for specific traits. Show Answer Correct Answer: A) Organisms inherit traits. 42. 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. 43. 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. 44. How does the concept of continental drift relate to evolution? A) It disproves the theory of evolution. B) It explains the distribution of fossil fuels. C) It supports the theory of uniformitarianism. D) It helps explain the geographical distribution of related species. Show Answer Correct Answer: D) It helps explain the geographical distribution of related species. 45. 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. 46. It is the ..... that is selected for/against survival, not the ..... A) Phenotype, Phenotype. B) Phenotype, Genotype. C) Genotype, Genotype. D) Genotype, Phenotype. Show Answer Correct Answer: B) Phenotype, Genotype. 47. What is the primary mechanism that drives evolution according to Darwin's theory? A) Gene flow. B) Mutation. C) Genetic drift. D) Natural selection. Show Answer Correct Answer: D) Natural selection. 48. Which of the following is an example of a vestigial structure? A) The wings of a red-tailed hawk. B) The hind limbs of a house cat. C) The tailbone of a human. D) The fins of a shark. Show Answer Correct Answer: C) The tailbone of a human. 49. 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) Response. B) Mutation. C) Migration. D) Phenotype. Show Answer Correct Answer: B) Mutation. 50. Scientists compare organisms' DNA to support the theory that all species share a common ..... A) Ancestor. B) Separation. C) Environment. D) Population. Show Answer Correct Answer: A) Ancestor. 51. 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. 52. 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. 53. ..... :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. 54. 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. 55. Different ancestor, similar function, different structure A) Analogous structures. B) Vestigial structures. C) Homologous structures. D) Speciation. Show Answer Correct Answer: A) Analogous structures. 56. 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) Natural selection. B) Speciation. C) Extinction. D) Adaptive radiation. Show Answer Correct Answer: A) Natural selection. 57. 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) Analogy. B) Sexual selection. C) Adaptive radiation. D) Homology. Show Answer Correct Answer: B) Sexual selection. 58. Wolves eating brown furred rabbits in preference to white furred rabbits in the arctic is an example of A) Mutation-causing different fur. B) Evolution-rabbit change over generations. C) Selection pressure-a visual predator. D) Speciation-a new species of rabbits is formed. Show Answer Correct Answer: C) Selection pressure-a visual predator. 59. This mechanism of evolution occurs when individuals migrate between populations. A) Extinction. B) Genetic drift. C) Natural Selection. D) Gene flow. Show Answer Correct Answer: D) Gene flow. 60. 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. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books