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Class 12 Biology Chapter 7 Evolution Quiz 24 (60 MCQs)

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1. Which group of organisms can be considered a population?
2. The first three eons were:Hadean, Archaean, and Proterozoic. They are better known as:
3. Formation of new species.
4. This structure could be leftover from an ancestor that had used the structure, and thus could provide evidence of divergent evolution. This structure no longer has a function, but is still present.
5. Which can be used as evidence for evolution (change over time)?
6. A cell with a cell wall and large vacuole
7. Speciation is when .....
8. Evidence for evolution reveals that closely related organisms have many different ..... characteristics
9. The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of .....
10. Plants that grow on the shaded forest floor often have larger leaves than plants that grow in an open field. How does this adaptation help the forest plants?
11. True of False. Organisms evolve or change over time in response to their environment?
12. How does comparing the embryos of different organisms support the theory of evolution?
13. Differences in DNA.
14. A table showing the sequence of geological periods in the history of earth is called .....
15. What was the Pangaea known as?
16. In the context of evolution, what is natural selection?
17. Shark fins and dolphin fins are examples of analogous structures.
18. The mechanism that is believed to cause evolution. Also known as survival of the fittest.
19. What is the significance of vestigial structures in the study of evolution?
20. Which of the following is not a correct condition for Hardy-Weinburg equilibrium to be met:
21. In the early 2000s, White Nose fungus caused a mass die-off of native American bat species. Those bats that survived will continue the population with their own allele frequencies. What type of genetic drift is this?
22. Who survives according to the theory of evolution
23. How do scientists know about the history of extinction?
24. Today ..... Million numbers of species are alive
25. Which of the following provides evidence of common ancestry among groups?
26. All of the following should be used to construct evolutionary trees EXCEPT
27. Over long periods of time, some taxa have become extinct, while new taxa have evolved. These changes together are known as
28. The idea that Earth's early oceans had organic molecules that became the first life is called the .....
29. ..... selection favors one extreme form of trait in a population.
30. What is the study of the form of living things?
31. A pond has one species of Catfish, but the water level decreases and the pond becomes two separate ponds, this will lead to ..... , because the catefish will become two different species.
32. Structures that are very different in structure or anatomy but have similar functions such as the wings of a bird and a butterfly.
33. The offspring in the second population will have greater genetic variety due to gene flow
34. Which is NOT one of the biological diversity patterns?
35. Which of the following best describes the concept of adaptive radiation in evolutionary biology?
36. What is the term for a feature that allows an organism to survive better in its environemtn?
37. What is an example of a vestigial organ in whales?
38. A change by which an organism or species becomes better suited to its environment.
39. The use of molecular clocks is not simple, because .....
40. Structures that no longer serve a purpose.
41. A group of organisms have a common descendent
42. Which of the following ideas proposed by Lamarck was later found to be incorrect?
43. The arm bones in mammals (humans, bats, and whales) all have a very similar bone structure, they are said to be .....
44. Which evolutionary adaptation is associated with the manufacture of tools, considered a significant milestone in human evolution?
45. True or false, Evolution acts on populations not individuals
46. Approximately 99% of the information in human DNA is shared by chimpanzee DNA. This is evidence of which of the following?
47. To determine evolutionary relationships scientist use .....
48. Structures that have similar features in different species that are related.
49. A Species is a specific type of .....
50. The availability of facts indicating whether a hypothesis is valid (true).
51. Are one of the most diverse and ancient groups of vertebrates, with a fossil record that dates back more than 500 million years.
52. The shift in the population of peppered moths after the Industrial Revolution resulted in:
53. Which of the following does not provide evidence for evolution?
54. Mutations are essential to evolution because they provide .....
55. Which type of adaptation involves physical features of an organism?
56. The main form of evidence for evolution.
57. ..... have only one cell and no nucleus, but have different structures and chemical processes from those of Archaea.
58. A rather large population of foxes has 555 individuals with tan fur and 390 individuals with red fur. Assume that red is recessive. Now that you have q, what should you solve for next?
59. ..... occurs when individuals within a population with the most favorable traits for an environment survive and pass on those traits.
60. Darwin's finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
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