1·Daphnia has a large number of never-before seen genes, as well as a big chunk of the same genes found in humans, the most of any insects or crustacean so far known to scientists.
水蚤有大量之前从未见过的基因，也有一大堆在人类身上就发现的相同基因，其数量是至今科学家所知的昆虫或甲壳类生物中最多的。
2·The results show that there are protozoa(main infusorian)and mini-metazoa(rotifer and daphnia)communities in PFU.
结果表明：PFU中的原生动物主要是纤毛虫，微型后生动物主要是轮虫和水蚤。
3·The essay reported the testing method and results of toxicity research of the pesticide to a water flea, Daphnia Magna.
本文报道了新杀菌剂叶青双对水蚤毒性的测定方法和结果。
4·Results:Daphnia magna could detect the toxicity of drinking water and water resource polluted by 0.
目的：验证采用大型水蚤检测农药和无机砷污染的饮用水和地表水源水毒性的可行性。