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由德国生物学家M.J.施莱登和T.施旺在1938年和1939年提出的细胞学说认为,一切动植物都是由细胞发育而来,并由细胞和细胞产物所构成。细胞学说广泛而深刻地影响了后来生物学的发展,任何生物学的重要问题都必须从细胞中寻求最后的解答。
The cellular doctrine proposed by German biologists M.J. Schleiden and T. Schwang in 1938 and 1939 holds that all animals and plants are derived from cells and consist of cells and cellular products. The cellular theory profoundly affected the subsequent development of biology. Any important biological problem must be solved in the cell for the final answer.