标签:Plankton 相关文章
THE PROPERTIES OF WATER Earth is an ocean planet. About three billion years ago, life on our planet began in the deep blue seas. Ninety-nine percent of the living space on earth is in the oceans. Marine life is incredibly rich and varied. There are
CHAPTER 9 Who Needs a Friend? The Alden family did not stay dumb for long. Tuesday Benny said, Lets see if we can find out where Captain Snow lives. Just step down to the store, said Henry, laughing. Everyone laughed. Wait just a minute until we fini
CHAPTER 8 From the South Seas I have an idea for today, said Mr. Alden at breakfast on Monday. See this paper, Henry? In Ashland, the next town, ships come in from all over the world. From Blue Bay? shouted Benny. Well, you are right, said Grandfathe
[00:34.32]Please keep your hands inside the car! 请勿把头和手伸出车窗外 [00:58.96]Tony, one large, extra plankton! 汤尼,来一份海藻披萨 [00:59.24]We have so litle time. They'll be here any minute. 时间不多,他们就快到了
They make perfect roof tiles, but these tiles occasionally reveal something extraordinary. Perfect snapshot s from 115 million years ago, back then, Solnhofen was part of a very still and salty tropic
The microscope. In their course of their professional work, scientists often take photos of microscopic objects. And often, the resulting images can be quite beautiful. For thirty years, Nikon, the camera company has held an annual competition to sel
Some are little more than rocks, others substantial mountains, covered in woodland. The first British person to see that was captain Cook, who stood here in 1770, and for the first time, realized the scale of the Great Barrier Reef. He also realized
By Andrea Niem Some meteorologists warn that a weather pattern known as El Nino may reemerge in the next few months, raising concerns of drought in Southeast Asia and Australia, and flooding in parts
The Properties Of Water Earth is an ocean planet.About three billion years ago,life on our planet began in the deep blue seas.Ninety-nine percent of the living space on earth is in the oceans.Marine life is incredibly rich and varied. There
This is the VOA Special English Agriculture Report. People in a community on the Pacific coast in Southern California awoke last week to a sea of dead fish. About eight hundred fifty sailboats and powerboats come and go from the marina at King Harbor
Satellites Study Weather Conditions, Predict Diseases 气象卫星研究天气变化可预测疾病 Meningitis is spreading across West Africa. The brain disease is a threat every year across 21 African countries. Health officials call this area, the
ROBERT SIEGEL, HOST: Adam Frank usually has his head in the sky. He's an astrophysicist. It's an occupational hazard. Right now, though, he is dazzled by the universe of green right here on Earth. ADAM FRANK, BYLINE: Now that we're well past the star
And how, you may reasonably wonder, can scientists know what oxygen levels were like hundreds of millions of years ago? 你也许有理由想知道,科学家们怎么会知道几亿年以前的氧气浓度? The answer lies in a slightly obscure b
And are we alone?. 二是我们是否唯一。 Those 2 deep questions drive us all through our whole lives. 这两个深刻问题伴随着我们的整个生命。 And to answer those 2 questions. 要回答这两个问题。 we have to continue to exp
By Phil Mercer Sydney 20 February 2008 Scientists say they have taken an array of new marine species from the seabed off eastern Antarctica. They are warning, though, that climate change could soon make extinct many of the strange creatures they have
2006职称英语考试模全真拟试题理工类C级(二) 第一部分:词汇选择(第1-15题,每题1分,共15分) 下面共有15句子,每个句子均有一个词或短语划有底横
U.S has acknowledged that IS militants??recent capture of the city??of Ramadi in Iraq and Palmyra in Syria??represent??a setback??,but President Obama said US and its allies were not losing the war. The BBC North America? ?editor John solo says the a
The KT meteor had the additional advantage advantage if you are a mammal, that is that it landed in a shallow sea just ten meters deep, KT陨石还有一个优势那就是说,要是你是个哺乳动物的话,那是个优势它在只有10米深的浅
Plankton Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazily with the currents, providing a basic f