The investigations found that there were obviously different in the species richness and individual abundance in the different sampling site. The number of species and the quantity of individual collected from the littoral zone were much higher than those from the open area. The protozoan colonizing rate on PFU in the littoral zone was also significantly higher than that in the open water.

研究結果表明：（1）湖中敞水區(qū)和沿岸帶原生動物種類數(shù)和個體豐度存在較明顯差異在线观看的av网站，前者低于后者人体国模私拍av；（2）同一生境條件下PFU人工基質收集的原生動物種類多于采自自然基質的種類；（3）定量數(shù)據(jù)顯示該湖原生動物個體數(shù)量秋、冬季在每升水中440—180個個體之間波動亚洲综合二区，較少的個體豐度與該湖屬寡營養(yǎng)型特征有關日韩AA黄片。

Ruminants possess a multi-chambered stomach in which bacterial and protozoan fermentation take place.

反芻動物擁有多室胃，在其中發(fā)生細菌和原生動物的發(fā)酵作用国产日韩精品AⅤ一区二区。

Ruminants possess a multi-chambered stomach in which bacterial and protozoan fermentation take place.

嚙齒動物99re5久久在热线播放，蝙蝠，鳥和螞蟻都是重要的種子擴散者欧美一区2区三区3区公司。

Any of the chiefly marine protozoan s of the order Foraminifera,characteristically having a calcareous shell with perforations through which numerous pseudopods protrude.

有孔蟲一種有孔蟲目的大多為海洋的原生動物中国农村特级黄色视频，以具有帶孔的鈣質殼為特征，通過該孔有許多虛足突出

The key observation was made by Cech in 1982 when he was trying to understand how introns were removed from mRNA that coded for ribosomal RNA in the eukaryotic protozoan Tetrahymena.

Cech在1982年進行了一次關鍵的研究中国熟妇乱XXXXX。當時他是想了解在真核原生動物四膜蟲中偷拍精品日韩视频，內含子是怎樣從編碼rRNA的mRNA上除去的。