有性繁殖是利用雌雄受粉相交而结成种子来繁殖后代的方法,也是人类的正常繁殖方法。
... generative psychosis [医] 胎产期精神病... generative propagation 有性繁殖 generative semantic grammar 生成语义文法...
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最早的有性繁殖生物是自由漂浮的浮游生物。
The first organisms that reproduced sexually were free-floating plankton.
像许多有性繁殖的物种一样,人类有特殊的性染色体。
Like many sexually reproducing species, humans have special gonosomes.
和他们的细菌祖先不同,这些细胞具有特殊的结构,其中包括细胞核,和可以进行光合作用的触角。 他们还能进行有性繁殖,这大大的加快了进化的速度。
Unlike their bacterial ancestors, the cells had specialised structures including a nucleus, as well as machinery vital for photosynthesis.
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