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生物学

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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生物学的贡献者

生物学 > 鸟类学

死亡的比率

生物学; 鸟类学

Newborne 或死在给定时间内的平均数量。