许多种蓝藻有固氮的能力.Among the blue - green algae are many species of nitrogen fixation.菌根起着固氮和贮氮的作用.Mycorhizae perform the function of nitrogen fixation and storage.根瘤菌是生物固氮的能手.Nodule bacteria are very good at biological nitroge...
If you like catfish, then you might like our Cajun catfish sandwich.如果您喜欢鲶鱼, 那么您可以试试我们的凯郡酱鲶鱼三明治.The catfish deposits its eggs in shallow water, generally dose to roots or close to reeds.鲇鱼通常在苇根或苇干附近的浅水里产卵.Products: catfi...