There is overwhelming evidence that the tumor clone including brain tumor is heterogeneous with respect to both morphology and function, which indicates differentiation potential of tumor stem cells.
大量事实表明，包括脑肿瘤在内，所有肿瘤细胞群落之间在形态和功能上存在很大差异，其异质性与肿瘤干细胞的分化潜能有关。
Natural environments are not uniform but heterogeneous, and genetic differentiation is an important strategy for organisms to cope with heterogeneous habitats.
环境的异质性是绝对的和普遍存在的，种内遗传分化是物种适应异质生境的重要对策。
Natural environments are not uniform but heterogeneous, and genetic differentiation is an important strategy for organisms to cope with heterogeneous habitats.
环境的异质性是绝对的和普遍存在的，种内遗传分化是物种适应异质生境的重要对策。
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