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性别是伴随着有性生殖的出现而在生物界同种个体之间普遍存在的一种形态和生理上的差异现象,表现为性的二态性,即有雌性与雄性个体之分。不同性别的个体特征,在形态方面,从人体解剖、器官结构到细胞组成,均表现出差异,并且在生理生化和行为方面以及在心理上也同样存在着差异。这些区别雌雄性别的一般特征即称为性征。在个体的发育过程中,性别的出现要经过一系列的连续演变的过程,此演变过程即是性发育过程,由此可
Gender is a morphological and physiological difference that exists ubiquitously between species of the same species in the biological world with the advent of sexual reproduction. It manifests itself in the sexual two-state, that is, the distinction between the female and the male. Individual characteristics of different genders, in terms of morphology, show differences from human anatomy, organ structure to cell composition, and there are also differences in physiology, biochemistry, behavior and psychology. These general characteristics of male and female gender are called sexual characteristics. In the process of individual development, the emergence of gender goes through a series of continuous evolution process, which is the process of sexual development, which can