Variations, survival of fittest and origin of species — task. Science State Board, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Choose the suitable ones:

1. The change of function in an organism as an adaptation to the changing environment is known as __________.

2. The type of evolutionary trend which resulted in new bird species that were better suited to new habitats and lifestyles is known as __________.

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6. Variations, survival of fittest and origin of species