Multiple choice questions XXIV — task. Science CBSE, Class 10.

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

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1. The theory of Natural selection of Darwin to explain organic evolution was based on

modification in organs through used and disuse
Inheritance of acquired characters
probability of reproduction, struggle for existence and survival of the fittest
appearance of sudden large variations, then inheritance and survival of those having these variations

2. Homologus structures have

similar origin & dissimilar function
structurally as well as functionally similar
normally non-functional
dissimilar origin but similar function

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