D habitats because it is divided up into different areas and different areas have different kinds of habitats
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Only differentiation creates more of the same types of cells. ... Only self-renewal creates more of the same types of cells. Only self-renewal depends on gene expression
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<h2>RNA nucleotides may also bear adenine , guanine and cytosine bases, but instead of thymine they have another pyrimidine base called uracil (U) . as shown in the figure above, each base has a unique structures with its own set of functional groups attracted to the ring structure... </h2>
My mutations are caused science
