Many different species live in the rainforest, which is a great example of ___ diversity. A. species B. genetic C. ecosystem 相关知识点: 试题来源: 解析 A。解析:题目提到许多不同的物种生活在雨林中,这是物种多样性的体现。species表示物种,genetic表示基因的,ecosystem表示生态系统的,根据题意应选...
解析:第六段以“长江白鳍豚”为例来说明该段的观点“Dolphin and porpoise species that haveadapted to rivers and deltas around the world have long been considered some of the most vulnerable ofmarine mammals”。所以,D应为答棠。 知识模块:阅读理解 The status of English as an international language ...
Mercury species analysis requires the determination of numerous different compounds with very different behaviour regarding environment and toxicity. For these differing species several new and more sensitive analytical methods have been developed and tested. Mercury species cannot be detected directly in ...
Breeds are different varieties of animals of the same species which are developed by interbreeding and selection. For example, German shepherd and Rottweiler are two different breeds of dogs of same species and Shire and Arab are different breeds of hors
It is an important task in biodiversity conservation to assess species endangerment status and determine protection priorities.Although IUCN Redlist Criteria are improving through periodical revision,people are still developing different criteria because information about population census,habitat status and life...
Can you give me anexampleof what you mean? 你能给我举个实例来解释你的意思吗? 牛津词典 Theexamplesare unique to this dictionary. 这些例证是这部词典独有的。 柯林斯高阶英语词典 Following theexampleset by her father, she has fulfilled her role and done her duty... ...
compared species diversity of wetland-dry grassland ecosystem in Yanchi County, Ningxia Hui Autonomous Region.The results showed that the same sample line in different zone of vegetation(divided into wet strip,ecotone strip and dry strip called "three strip") had obvious differences in species ...
The purpose of transgenics in aquaculture is to give fish traits they do not naturally possess. This is achieved by introducing desirable genes from other species, such as the antifreeze gene, to enhance their survivability and adaptability to different environments. The passage states that researcher...
aEcologists have often compared ecological communities in different areas, for example on different continents. The main interest is that the communities might be more similar in the characters of their species than expected under a null model of random species assortment. We suggest that such a nu...
One-hundred and five fungal strains, belonging to 46 different species, were screened for exopolysaccharide production. Phytopathogenicity and, in particular, inability to produce conidia, were physiological characteristics positively associated and correlated with the fungal ability to produce polysaccharides...