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Class 12 Biology Chapter 7 Evolution Quiz 27 (60 MCQs)

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1. Development of many sea reptiles;early large dinosaurs; later, flying reptiles, and earliest known birds
2. Traits must be inherited to be passed on.
3. In binomial nomenclatures, in which order are the names listed?
4. Charles Darwin called the ability of an organism to survive and reproduce in its specific environment
5. An Emperor Penguin has high ..... , because they are able to survive and reproduce in their Antarctic Environment.
6. The belief that speciation occurs sporadically with long periods of no speciation and brief periods of rapid speciation.
7. Polar bears have a thick coat with hollow hair. How does this feature help them survive in the Arctic region?
8. What type of reproductive isolation is this example:A Mountain Range
9. What factor must be in place for natural selection to occur?
10. A scientist digs in an undisturbed field and finds a leg bone of dinosaur A about 6 meters below the surface. She keeps digging and finds a jawbone of dinosaur B about 15 meters below the surface. Based on this information, which is the MOST likely conclusion?
11. The branch of the science that deals with the study of fossils is known as
12. The combination of all the genes (including alleles) present in a reproducing population or species
13. Ichthyosaurs were aquatic dinosaurs. Fossils show us that they had dorsal fins and tails, as do fish, even though their closest relatives were terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish are
14. Dark moths began to outnumber white moths in cities after the Industrial Revolution. What is the most likely reason for this change?
15. What was the result of the Miller-Urey Experiment?
16. The fossils found closer to the surface of the ground are generally-(a)
17. Finches on the Galapagos Islands had different beaks in order to help them do what?
18. What role do keystone species play in evolutionary biology?
19. Is a type of natural selection in which individuals with one extreme of a trait have higher fitness and are more likely to survive and reproduce. This leads to a shift in the frequency of the trait in the population over time, as individuals with the favored trait become more common
20. Which fox will be favored to survive in the year-round snow covered forest environment?
21. Amelia and Joel are studying the impact of the Burmese Python on the populations of small mammals in the Everglades. What have they observed?
22. According to modern evolutionary theory, genes responsible for new traits that help a species survive in a particular environment will usually
23. Who is often called the "father of modern genetics" for his experiments with pea plants, which provided evidence for the concept of heredity and influenced Darwin's ideas on variation within species?
24. Shifts average phenotypes in one direction (either extremes)
25. Similar ..... are the strongest evidence for evolution from a common ancestor.
26. You look at two species and see very similar DNA. What does this likely tell you?
27. For the most part, evolutionary changes occur too slowly for us to see.
28. A ..... is a branching diagram that shows evolutionary relationships.
29. All of these are ways that organisms can evolve EXCEPT .....
30. Which of the following best describes the data from part 1 of the experiment?
31. The change over time in populations of related species.
32. ..... is the mechanism for evolution, and it says that organisms that are best adapted to their environment are most likely to pass on their genes.
33. Having freckles is dominant over not having freckles. If two individuals heterozygous for freckles have a child, what is the probability the child will have freckles?
34. Change in genetic makeup of a population overtime:descent with modification
35. In a population of mice, long hair (h) is recessive and short hair (H) is dominant. The population of the mice is 100, and there are 9 mice with long hair. What is the heterozygous frequency?
36. Adaptations help a population survive over time by:
37. Which people can get MRSA?
38. A type of structure that is physically present, but does not seem to serve a significant function for an organism.
39. What do "gills" develop into in humans (Homo sapiens)?
40. Places on a phylogenetic tree where organisms share a common ancestor are called .....
41. After the trees darkened from pollution, which type of moth survived more often?
42. The change in the genetic make up of a population is called .....
43. The type of selection in which individuals of average size have greater fitness than small or large individuals have is called
44. A remnant or trace of an organism from the past is called a .....
45. Is the most common type of symmetry observed in animals. It refers to the arrangement of body parts or structures in a way that creates a mirror image when divided down the middle.
46. A cell with chloroplast
47. What evidence of evolution? Kangoaroos are found only in Australia.
48. In what instances might punctuated equilibrium occur?
49. What is the unique family of genes in animals that plays an important role in the development of embryos, and controls the expression of other genes influencing animal morphology?
50. ..... includes the familiar kingdoms of plants, animals, and fungi.
51. Which mechanism of change occurs when a individuals from a population migrate to a new population?
52. Why are antibiotics used cautiously?
53. 2 colors of lizards live in the same environment One blends in to the ground this is an example
54. A species of ivy invades the beetles' current habitat and become the dominant form of vegetation. The color of the ivy's leaves is similar to the beetles' average color.Considering selective pressure on the beetles from predatory birds, which type of natural selection will most likely occur in this situation?
55. Poaching in the African Savannah has led to a severe ..... of the Cheetah population, because their population size was dramatically reduced, leading to less genetic diversity.
56. Where did the roughly 25, 000 working genes in the human genome come from?
57. In terms of evolution theory, which explains why giraffes have come to have such long necks?
58. Male peacocks are famous for their colorful, showy tails, whereas female peahens are brown with no fancy tails. This is an example of sexual dimorphism, found in organisms with two different looks within the species. What mode of selection produces species exhibiting sexual dimorphism?
59. What role does DNA sequencing play in providing evidence for evolution?
60. Occurs when two populations of organisms form a specialized relationship and thus change in response to each other
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