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Negative selection (D) removes the harmful alleles.
S Phase it is important that the cell develops properly
<span>This is true. Pioneer species are introduced to infertile soil so that the soil may become suitable for growing other plant species. These species do not rely heavily on soil; instead, they live on rocks and minerals. Moreover, they break down these rocks into soil so and eventually create a thicker layer of soil, allowing other plant species to inhabit the same region.</span>
