这个词是什么意思？
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D013045 · MeSH 2026。
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