The first living things on Earth were single - celled organisms. Which of the following is a characteristic of the evolution from single - celled to multi - celled organisms? A. The ability to live independently without any cooperation among cells B. The development of specialized cells for ...
根据第一段“All living organisms are uniquely adapted to the environment in which they live. Scientists are studying the design and the biological processes of these organisms to get ideas for products and technologies. This field of study is called biomimetics. Here are two examples.(所有的生物...
Whales are the largest living organisms(生物) living on the surface of the earth.An adult blue whale weighs up to 173 tons with 30 meters in length.When a whale dies in the ocean;its body usually falls to the sea floor and a "special deep-sea- ecosystem will be formed in a long tim...
根据第一段“As the world’s oldest living organisms, trees have been our silent companions. Although they inspire a large quantity of fancy tales, the richness of what they say is beyond description.(作为世界上最古老的生物,树木一直是我们沉默的伙伴。虽然它们激发了大量的奇幻故事,但它们所说的...
Anecosystemisacommunityoflivingorganismsandthephysical___inwhichtheysurvive. A. land B. geography C. environment D. substance 相关知识点: 试题来源: 解析 句意:生态系统是生物群落和它们赖以生存的物理环境。考查词义辨析。A.land土地;陆地B.geography地理环境;地形C.environment生态环境;客观环境;自然环境D....
结果1 题目 51. The living organisms in the domain Archaea that live near volcanic vents in the ocean floor are example of(a)(a)chemoautotrophs(b)chemoheterotrophs(c)photoautotrophs(d)photoheterotrophs(e)geotrophs 相关知识点: 试题来源: 解析 (a) 反馈 收藏 ...
Thus, religio (being bound, by a treaty), pietas (reverence), and fides (keeping faith) were ideas which belonged together.] (2)政治首先是一项宗教活动,需要搞清楚某种政策是不是符合神意(占卜)(Politics, then, the pursuit of policy, was, in the first place, a religious activity. It ...
The study of living organisms and their interactions with the environment is called ___. A. biology B. chemistry C. physics D. geography 相关知识点: 试题来源: 解析 A。本题考查生物学科词汇“biology(生物学)”,生物学是研究生物体及其与环境相互作用的学科。反馈 收藏...
9.Scientists have found living organisms trapped in crystals(晶体)that could be 50,000 years old. The organisms were found in a hot,but beautiful cave system in Naica,Mexico.These ancient life forms can be seen only with a microscope.Penelope Boston,who leads the Astrobiology Institute at NASA...
Life on Earth-Fresh Clues hint at how the first living organisms arose from inanimate matterRicardo, AlonsoSzostak, Jack WRicardo, A.; Szostak, J. W. Life on Earth: Fresh Clues Hint at How the First Living Organisms Arose from Inanimate Matter. Sci. Am. 2009, 301, 54-61....