Trypanosomiasis refers to two diseases caused by the protozoa called trypanosomes .
锥虫病是由原生动物引起两种疾病称为锥虫。
Whereas protozoa and bacteria are both living organisms that are able to take in nutrition and reproduce asexually , viruses cannot live or reproduce on their own .
不像原生动物和细菌那样,能够摄取营养并进行无性繁殖,病毒不能够自行生存或繁殖。
They said that further research is required to determine the survival of protozoa and their internalized bacteria in food processing environments under stress conditions such as heat , extreme ph values and disinfection .
This paper aimed to study the effects of soybean oligosaccharids on , the total number of sheep rumen bacteria , the number of cellulolytic bacteria , methanogen and the number of rumen protozoa .
本文旨在研究大豆寡糖对绵羊瘤胃细菌总数、纤维分解菌数、甲烷产生菌数和瘤胃原虫数的影响。
The food composition consisted of eight groups : diatom , protozoa , spongiaria , annelida , mollusca , crustacea , echinodermata and pisces .
其食物组成有8大类:硅藻类、原生动物、海绵动物、环节动物、软体动物、甲壳动物、棘皮动物及鱼类。
They added that in most of the samples that yielded a protozoan-positive enrichment culture , residual organic material and / or water was present and said their results suggest that a good hygiene score does not necessarily correlate with an absence of protozoa in the food processing environment .
Two new marine sessile peritrichous ciliates ( protozoa , ciliophora )
海洋固着缘毛类纤毛虫聚缩虫两新种(原生动物,纤毛门)
The culture collection of algae and protozoa .
藻类和原生动物培养物收藏。
Researchers had thought that only single-celled organisms such as prokaryotes and protozoa could live in the oxygen-deprived environments of the deepest ocean .
研究人员一度以为,只有单细胞生物,如原核生物和原生动物,才能在深海缺氧环境中生活。
As long as the water is clear enough not to absorb the rays , exposing it to a discharge lamp will destroy the dna of viruses , bacteria and protozoa that could otherwise cause illness when swallowed .