种子的存活率大大高于裸孢子的存活率。
The seed's chances of survival are greatly enhanced over those of the naked spore.
The one theory made some investigations of earth spores, hoping to find-- what do you call that stuff that floats around and makes you sneeze? Pollen.
有种学说对于,土地孢子进行了调查,期待发现,通过植物种子的变化推定气候状况的方法
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