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the variations in genes, genes of sexually reproducing organisms will vary due to crossing-over of genes, mutations, and adaptations. In asexually reproducing organisms genes will vary through adaptations and mutations.

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13y ago
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12y ago

if there is variation during fertilisation in humans due to atmospheric and climatic changes,then we can notice variation in humans in further stages.

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12y ago

ask your mom

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14y ago

Temperature and Geography.

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Q: What causes variation in human beings?
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