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Evolution

Short Answer Type

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 ?

Adaptive radiation is the evolutionary process in which different species in a geographical area start starting from a point radiate to other geographical areas or habitats. It gives rise to new species adapted to new habitats, conditions and ways of life

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