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Class 12 Biology Chapter 7 Evolution Quiz 16 (60 MCQs)

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1. What are sexual selection?
2. Based on the evidence of comparative anatomy, what conclusion can be drawn about the relationship between humans and other primates?
3. What does structural evidence for evolution demonstrate?
4. A ..... can be used to classify organisms based on characteristics.
5. What is an example of Variation?
6. When farmers select the largest hogs, the fastest horses, or the cows that produce the most milk for breeding it is called .....
7. In which location would a population most likely be geographically isolated?
8. A farmer's use of the best livestock for breeding is an example of
9. Ability of an organism to survive and reproduce in its environment.
10. A remnant or trace of an organism from the past such as a bone found buried in the earth called a .....
11. ..... is the fact that organisms change over time and are related through common ancestors.
12. During a class discussion, Alex and Salyse were talking about the role of native species like the Florida Panther in Florida's ecosystems. What effect do these native species have on the population of herbivores?
13. Gradual change in a population through adaptations over time.
14. According to Lamarck's theory of acquired traits, evolution occurs:
15. A taxonomic category that names a group of similar, closely related organisms
16. What is the bottleneck effect?
17. What is the term used to describe the movement of alleles between populations?
18. Which significant change can occur to a small population as a result of genetic drift?
19. How do fossils support evolution?
20. What happens to an ecosystem if a keystone species is removed?
21. During a school trip to Florida, Alondra and Carl learned that the Gopher Tortoise creates burrows that become beneficial habitats for many other species, making it .....
22. A living thing's ability to have babies is also called .....
23. How living things changed over time is called .....
24. True or False:Natural Selection is Random
25. In a population of beetles, a mutation causes some beetles to have a green shell instead of a brown shell. If birds prefer to eat brown-shelled beetles, what is likely to happen to the green-shelled beetles over time?
26. Is a scientific explanation for the diversity of life on Earth. It proposes that all living things share a common ancestor and have evolved over time through a process of descent with modification. This process is driven by natural selection, which favors individuals with advantageous traits that allow them to survive and reproduce more effectively than others.
27. ..... is the era of ancient life
28. When he returned to England, Darwin based much of his evolutionary theory on differences among Galapagos
29. An evolutionary pattern in which many species evolve from a single ancestral species
30. The early cell types which were formed on the earth, were .....
31. Which of the following is evidence to support the idea that two different species might have a common ancestor?
32. Individuals that aren't well suited for their environment, won't survive or will have very few offspring are said to have ..... fitness
33. Which form of Genetic Drift is the result of a few individuals becoming isolated from a larger population?
34. Vestigial Structures
35. Most Swiss starlings produce four to five eggs in each clutch. Those producing fewer or more than this have reduced fitness. Which of the following terms best describes this?
36. The greatest degree of genetic variability would be expected among organisms that reproduce via
37. Which of the following is NOT an example of evolution?
38. An inherited trait that helps the organisms that have it to survive is known as a/an
39. Based on our knowledge on natural selection which animal would be best suited for a dry desert environment
40. An adaptation like the finches beaks is
41. Some marine worms and mollusks go through similar larval stages during development. Which can be inferred about their relationship?
42. Which of the following is an example of homologous structures in evolutionary biology?
43. What does the term "speciation" refer to in evolutionary biology?
44. In an experiment studying natural selection, a population of beetles is observed over several generations. Initially, the population is mostly green, but over time, more brown beetles are observed. What is the most likely explanation for this change?
45. Which form of Genetic Drift is the result of a sudden change drastically reducing the size of a population?
46. Both ancestral birds and ancestral mammals shared a common ancestor that was terrestrial. Today, penguins (which are birds) and seals (which are mammals) have forelimbs adapted for swimming. What term best describes the relationship of the bones in the forelimbs of penguins and seals, and what term best describes the flippers of penguins and seals?
47. A recessive trait has the frequency of 0.3. Assuming the population is in Hardy Weinberg equilibrium, what is the expected frequency of the heterozygous population?
48. If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?
49. Similar physical features in organisms that share a common ancestor, but the features serve completely different functions
50. Which organisms are most likely to pass their traits to their offspring?
51. Biogeography is the way species evolve .....
52. In an experiment, a population of bacteria is exposed to an antibiotic. After several generations, some bacteria survive and reproduce. What is the most likely explanation for this observation?
53. What is a vestigial structure?
54. What is gradualism?
55. Oldest and longest geologic time period
56. A structure that is anatomically and genetically similar between organisms belonging to different species.
57. From Malthus, Darwin knew that populations could grow faster than their resources. This "overproduction of offspring" led to a " ..... , " in Darwin's words.
58. All species have a common origin, and they may change through time.
59. When animals have to adapt to their environment in order to survive ..... this is known as:
60. How old do Paleontologists believe the Earth is?
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