单词：filamentous lichens
单词：filamentous lichens 相关文章
Like most things that thrive in harsh environments, lichens are slow-growing. 像大多数在恶劣条件下茁壮成长的东西一样，地衣长得很慢。 It may take a lichen more than half a century to attain the dimensions of a shirt button. 地
万物简史
Grizzly bears once roamed much of the United States. But two centuries of hunting and habitat loss have devastated their numbers. Today, less than 1,200 live in the Lower 48. If there is a last remaining stronghold for the North American Grizzly, it
国家地理2007年
Fatty acids - long straight chains of carbon and hydrogen ending with an acid group at one end. Saturated fatty acids have no capacity to absorb more hydrogen atoms. Animal fats are mostly of this typ
医务英语
The more varied the kinds of land in the sanctuary, the greater is the variety of wild things that can grow and den and build there. 保护区的土地类型越多，各类野生动植物在这里成长，建巢穴的数量也就越多。 What a numb
美国小学英语教材6
When Emerson poetically noted that mosses favor the north sides of trees (The moss upon the forest bark, was pole-star when the night was dark) 当埃默森富有诗意地谈到苔藓喜欢生长在树木的北侧的时候（在漆黑的夜晚，树干
万物简史
Goodness knows what the results would be if anyone attempted a similar exercise with the planet's estimated 20,000 types of lichens, 50,000 species of mollusk, or 400,000-plus beetles. 要是有人试图对这颗行星上的大约2万种地衣、5万多
万物简史