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Class 12 Biology Chapter 7 Evolution Quiz 9 (60 MCQs)

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1. Describes a group of living things that are no longer living.
2. Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, which of the following best describes fitness?
3. What do you call someone who has been shown to be related:
4. He proposed a Theory of Evolution based on Natural Selection.
5. The population of peppered moths in England changed from white to black in 50 years
6. What is suggested by the anatomical similarity of different species of vertebrates?
7. The structures of the front flipper of a whale and the forearm of a wolf have similar bone structure and derive from a common ancestor. This is an example of .....
8. In Canada, the people have overfished the salmon in a particular river. They catch the larger salmon and throw the smaller salmon back into the river. Over time, what type of selection is likely to take place?
9. ..... are the structures that are similar in different species of common ancestry
10. Which of the following scientists did not influence Darwin?
11. Four species of animals were studied. Four traits of these animals were compared. The following data was gathered. Organism 1&2 shared 2 traits. Organism 1&3 shared 3 traits. Organism 2&3 shared 1 trait and organism 2&4 shared 4 traits. Using this data, which organisms are the closet in relations to each other?
12. What type of evidence for evolution is represented by the examination of similarities in the early developmental stages of different organisms?
13. Studying the development of ..... can also provide scientist with evidence that certain species are related.
14. What is one reason that strawberries are surviving in the winter season?
15. Variations of traits that happen WITH humans deciding what is useful:
16. Who is "B. Mac" ?
17. Example of genetic drift?
18. Which statement BEST explains why evolution is classified as a theory?
19. This theory describes how archaebacteria and eubacteria joined forces to create this larger cell
20. Is the unit of study in population genetics. Specifically, ..... is a group of individuals who interbreed among themselves according to a certain system of mating and form a breeding community. These individuals share a common gene pool that is the total genic content of the group.
21. Which of the following best describes vestigial structures?
22. What are the evidences for Evolution?
23. A physical structure that was fully developed and functional in an earlier group of organisms but is reduced and unused in later species.
24. Genetically identical plants will produce either pink flowers or blue flowers, depending on the type of soil in which they are planted. What is most likely the explanation for the differences in flower color?
25. He is considered the father of taxonomy?
26. What mechanism of change occurred in the given scenario:There is a population of mice with either black fur or white fur. Their habitat is on dark stone, and mice with white fur were eaten more frequently than the black-furred mice, resulting in the black-furred mice to reproduce at a higher rate.
27. Scientists see anatomical and molecular similarities among organisms that suggest that life on Earth began about 4 billion years ago as what type of organism?
28. ..... is the process by which populations of organisms with variations that helps them survive in their environments live longer, compete better, and reproduce more than populations that do not have the variations.
29. Which of the following scientists was a geologist?
30. Whale fins and bat wings are anatomically similar. Which of the following does this suggest about the animals?
31. The fossil record shows that the average size of black bears was large during glacial periods and got smaller during warmer time periods. What is this an example of?
32. Gregor Mendel's pioneering genetic experiments with pea plants occurred before the discovery of the structure and function of chromosomes. Which of the following observations about inheritance in pea plants could Gregor Mendel observe?
33. The ability of an individual to survive and reproduce in a specific environment is called
34. Which of the following statements is true about genetic drift?
35. Fungi are like animals because they-
36. Is a type of genetic mutation that results from the addition or deletion of nucleotides in a DNA sequence that are not in multiples of three. This causes a shift in the reading frame of the gene, which can alter the amino acid sequence of the protein encoded by the gene and lead to a nonfunctional or partially functional protein.
37. In a population that is in Hardy-Weinberg equilibrium, the frequency of a particular recessive allele a is .4. What is the percentage of the population heterozygous for this allele?
38. When comparing the DNA of two different organisms, the more differences in the DNA base pairs the more-
39. Which will most likely cause variations to occur within a species?
40. Body part that is similar in function as a body part of another organism but is structurally different.
41. An organism with no nucleus
42. ..... is the era of primitive life.
43. ..... :Genetic Change in a population or species of living organisms over a period of time.
44. Scientists have concluded that snakes evolved from an ancestor with legs. Which of the following statements provides the best evidence for this conclusion?
45. Natural selection acts on ..... traits-traits passed from parent to offspring.
46. What happens through evolution?
47. How does the presence of a keystone species affect biodiversity in an ecosystem?
48. Linage that involved from the root and remains unbranched is the .....
49. What is the significance of the fossil record in understanding evolutionary processes?
50. Whose work on biogeography, particularly the distribution of species across different regions, contributed to the understanding of how species evolve in response to their environments?
51. Which best explains why species living in Australia are found nowhere else on Earth?
52. When a stem cell has divided and turned genes on or off those cells have
53. The theory of Endosymbiosis explains .....
54. What are the 5 important parts of Natural Selection?
55. Mutations that improve an individual's ability to survive and reproduce are
56. Which situation would most likely result in evolution?
57. Which of the following is an example of overproduction in bearded dragons?
58. Video Click HereWhy do scientists think that the first feathers were not for flight?
59. Where humans have bred organisms together based on traits we like.
60. The intentional breeding of organisms with desirable trait in an attempt to produce offspring with similar desirable characteristics or with improved traits.
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