小特别16
物种的多样性(biodiversity)是生物多样性的关键，它既体现了生物之间及环境之间的复杂关系，又体现了生物资源的丰富性。我们已经知道大约有200多万种生物，这些形形色色的生物物种就构成了生物物种的多样性。生物多样性是生物及其与环境形成的生态复合体以及与此相关的各种生态过程的总和；有人问根据对自然界的研究可以推断造物主的工作有何特点，据说英国科学家约翰·波顿·桑德森·霍尔丹（J.B.S. Haldane）回答：“过于喜爱甲虫。”因为甲虫是地球上最大的动物群。美国史密森学会（Smithsonian Institution）的特里·欧文（Terry Erwin）推断，多数未知的甲虫种类可能生存于我们无法靠近的30米高的热带森林树冠层。20世纪后叶生命科学各领域取得了巨大的进展，特别是分子生物学的突破性成就，使生命科学在自然科学中的地位起了革命性的变化，很多科学家认为在未来的自然科学中生物科学将成为带头学科，甚至预言本世纪是生物学的世纪。从事生命科学研究的专业人员也越来越多，例如，在美国如今统计48万博士学位获得者中从事生命科学的占51%。在生物科学诸多的分支中，保护生物多样性是生物科学最紧迫的任务之一，也是全球生物学界共同关心的焦点问题之一。据可靠的数据说明，每天约有100多种生物在地球上灭绝，很多生物在没有被人类认识前就消亡了，这对人类无疑是一种悲哀和灾难。保护生物多样性的行动势在必行、迫在眉睫。
cll19880211
问题一：急求有关生物多样性的英文资料 Biodiversity is the variety and variability of life on Earth. This includes all of the plants and animals that live and grow on the Earth, all of the habitats that they call home, and all of the natural processes of which they are a part. The earth supports an incredible array of biodiversity―from Thailand’s tiny bumblebee bat to the ocean’s great blue whale―with plants and animals of all shapes and sizes in between. This fantastic variety of life is found in diverse habitats ranging from the hottest desert to tropical rainforests to the arctic tundra. Biodiversity is essential to every aspect of the way that humans live around the world. Plants and animals provide people with food and medicine, trees play an important role in absorbing greenhouse gases and cleaning the air we breathe, and rivers and watersheds provide the clean water that we drink. Unfortunately, the earth’s biodiversity is disappearing, with an estimated 1,000 species per year being extinct. Conserving biodiversity is especially crucial in developing countries where people’s livelihoods are directly dependent on natural resources such as forests, fisheries and wildlife. Plants and animals provide people with food and medicine. Forty percent of all prescriptions written today are posed from the natural pounds found in different species. An estimated 80,000 edible plants are found in the world, and one in every three mouthfuls of the food you swallow is prepared from plants pollinated b......>> 问题二：热门单词："生物多样性"用英语怎么说 biodiversity 英 [?ba???da??v?:s?ti] 美 [?ba?o?da??v?:rs?ti] n. 生物多类状态，生物多样性 词汇难度：IELTS 双语例句： Their mitment was only to maintain the extent of forests, not their biodiversity. 他们仅承诺维持现有森林面积，并不保证林区生物的多样性。 问题三：生物多样性稳定性评价英语怎么说 生物多样性稳定性评价 Biodiversity stability asses *** ent
