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Class 12 Biology Chapter 7 Evolution Quiz 14 (60 MCQs)

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1. What is a change in an organism that allows for it to survive in its environment?
2. Analogous Structures are from what type of Evolution?
3. A branching diagram showing the cladistic relationship between a number of species
4. Which fact provides the best evidence for the biological theory of evolution?
5. Similar structures with different purposes found in different species are known as .....
6. Any trait that increases an organism's chance of survival.
7. Process by which two species evolve in response to changes in each other
8. Which of the following is the CORRECT form of a scientific name?
9. A Biology student is cross breeding fruit flies and noticed the following observations. 75% of the offspring had red eyes and 25% of the offspring had white eyes. What conclusions can be supported by the data?
10. When an organism completely dies out, it is called .....
11. The term that best describes why the moth population changed color over time
12. What is the meaning of the word "ancestor" in biology
13. Scientists found the fossilized remains of a mammal's jaw and leg. What additional information do scientists need to hypothesize the age of the fossil?
14. Who was the first scientist to believe that new species could be formed eventually?
15. What is the definition of variation in the context of evolutionary biology?
16. Old-fashioned pendulum clock mark time with a swinging pendulum. A molecular clock also relies on a repeating process to mark time it is called a .....
17. "Endosymbiosis" means
18. Genes that are beneficial to the species will .....
19. Being able to adapt to a variety of habitats and food sources
20. In the Hardy-Weinberg Equation, p$^{2}$ is the frequency of what?
21. Most biologists agree there are three domains of life which are they?
22. Similarities in the embryos of vertebrates early in development suggests commonancestry among vertebrates. What study is this?
23. Which of the following best describes the concept of 'survival of the fittest'?
24. Is a type of natural selection that arises from competition for mates, in which individuals with certain traits have higher mating success and reproductive fitness. Unlike other forms of natural selection, which are driven by survival and adaptation to the environment, sexual selection is driven by the ability to attract mates.
25. Most organisms have more offspring than will survive
26. Gene flow is accomplished when
27. Why does natural selection affect populations and ecosystems?
28. Give an example of natural selection in action.
29. The fossil record help scientists
30. Which of the following claims can be made from our data from part 2?
31. Why do chicken embryo and a cow embryo look very similar even though the adults do not?
32. Which of the following statements about endosymbiotic theory is FALSE?
33. Males of the bighorn sheep species fight one another to show females who is the dominant male and are more likely to mate with females.
34. These are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor.
35. Paraphyletic group
36. Variation is the result of .....
37. The past and present distribution of organisms is .....
38. ..... is when a a change in allele frequency following a dramatic reduction in the size of a population
39. Scientist(s) who believed in uniformitarianism and that the Earth is very old
40. Darwin theorized that individuals having an advantage due to their traits or abilities will be more likely to survive in a given environment and reproduce. This theory is known as? (not change over time)
41. Body parts that have a similar function, but not a similar structure
42. Biodiversity at any time on Earth is the result of both the evolution and extinction of taxa.
43. What is the main purpose of Linnaean classification in biology?
44. Tigers and crocodiles are more closely related than tigers and sharks.Which statement about shared characteristics best supports this statement?
45. The study of how animals have change over time is called
46. What must be true of any organ that is described as vestigial?
47. A new organisms was discovered. It is unicellular, has no nucleus, and has a cell wall. In which kingdom would we classify this organism?
48. The idea that living things and the world are continuously changing
49. Which of the following best describes genetic drift?
50. What is the primary mechanism by which evolution occurs?
51. What type of selection happens when either extreme of the phenotypes are selected?
52. In the context of evolution, what is the significance of homologous structures?
53. A species of frog, over time and through mutations, becomes two species as it spreads from swamp to swamp. This is an example of:
54. If an ecosystem lost a keystone species, which outcome would be expected?
55. True or False:A variation is a difference that exists naturally among members of a population or species.
56. ..... is when living things interbreed and live in the same place and time.
57. A vestigial organ is present in modern-day species, but its utility is lost. The presence of hip bones in modern whales is an example of a vestigial organ. Which statement can be concluded about the ancestors of whales?
58. A body part that is not used or not working by a modern organism but which was needed by its ancestors is called a
59. In an experiment, suppose that the wings of fruit flies were clipped short for fifty generations. The fifty-first generation emerged with normal-length wings. This observation would tend to disprove the idea that evolution is based on .....
60. What is the study of chemical processes in living things?
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