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Yuklia · Answer 1 · 2017-11-08T15:07:26+0000

this type of breeding happens when humans use plants and animals to selectively develop particular phenotypic traits by choosing which male and female, plants and animals will sexually reproduce and have an offspring together.

Liu Guanghua · Answer 2 · 2017-11-11T05:16:30+0000

over thousands of generations since we have been doing this since we settled down and started grazing livestock to produce the best food products

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