Once, before the evolution of plants and animals, bacteria were all there was.
曾经,在植物与动物的进化之前,细菌就是这个星球上生命的全部。
Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.
生物学上的假设包括生态变化,这些变化是由昆虫和开花植物之间的共同进化,或海洋中以海底生物为食的捕食者的进化所带来的。
These "big bangs" in plant evolution occurred when the genomes of ancient plants duplicated, providing vast Numbers of new genes that could take on new functions and lead to new traits.
这种植物种群数量的“大爆炸”是在古代植物染色体组加倍时发生的。染色体组加倍给植物提供了大量具有新功能的基因,这些新基因又形成了新特性。
应用推荐