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61. (i) Give any two striking similarities in the structure of embryos of all the vertebrates.

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62. What according to Lamarck was the driving force for evolution? Explain with an example.

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63. What is biogeography ? How does the distribution of animals and plants support evolution ?

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64. What is adaptive radiation ?

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There are three theories of evolution :

(i) Lamarck's theory of inheritance of acquired characters or Lamarckism.

(ii) Darwin's theory of Natural selection or Darwinism.

(iii) De Vries Mutation theory.

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66. List the main points of Lamarck's theory.

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67. Give the main points of Darwin's Theory of Evolution.

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68. Homo sapiens arose during which age?

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69. Explain antibiotic resistance observed in light of Darwinian selection theory.

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70. Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.

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