Root Apical meristem

root  apical  meristem is a  thimble-like  root  cap,  which  protects  the  delicate  apical  meristem  as  the root  pushes  through  the  abrasive  soil

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Evolution by natural selection occurs if Genetic variation must leads by Ecotypes. Ecophene is not be selected by natural selection

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Change in environmental condition is not necessary for natural selection.

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Before Darwin

Christians interpreted- “special creation”

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Carolus Linnaeus- Classified “related” species into genera, “related” genera into orders, and so on.

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James Hutton and Charles Lyell- Uniformitarianism

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Chevalier de Lamarck- Inheritance of acquired characteristics