A scientist at the University of Florida told the newspaper, “ As astronauts we will fly the spaceship and do scientific experiments such as growing plants and repair the space ship. Many unpredictable(难以预料的) difficulties are waiting for us.” Then He added, “In stressful situations, per...
Dong-Hwan Choe is a biologist a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants “I'm dead—take me away” when it is dead. But there's a question to answer: As we know if an ant is dead it...
Dong-Hwan Choe is a biologist a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants “I'm dead—take me away” when it is dead.But there's a question to answer: As we know if an ant is dead it ...
of healthy cells and the second was still the smell of the cancerous cells. Once this test was successful, the researchers made them smell different cancerous cells. As a result, the scientist found that ants could judge between cancerous and healthy cells and between two cancerous cells. ...
根据第三段中的She experimented with newly-discovered elements to create the theory of radioactivity (放射性).(她用新发现的元素做实验,创立了放射性理论)和Because of her pioneering work which led to the treatment of cancer by the use of chemical substances,the charity decided on the na...
B.Scientist should be able to develop new plants that could grow on Mars. C.Mr. Jiang found his flat look as good as new. D.The robot is so much trouble that he doesn’t want to own one. 试题答案 在线课程 【答案】A 【解析】句意“下面那个句子是宾语从句”。A为宾语从句,从句部分为...
1.which scientist discovered that objects in water are lifted up by a force that help them float?2.who wrote a book explaining how animals and plants developed as the environment changed?3.who invented the first steam engine?4.who used peas to show how physical characteristics are passed ...
What is a scientist who studies living organisms and living systems called? Which kind of organism makes up the oldest fossil found on Earth? a. Protists b. Bacteria c. Animals d. Plants Which hominin species were most like Homo sapiens? What is the largest mammal in the world? If the ...
-1553), an Italian physician, scientist, and poet. An acute observer of plague, typhus, and other contagious diseases, Fracastoro was a pioneer of epidemiology (the study of the spread of epidemic diseases) and an early advocate of t...
B. Scientist should be able to develop new plants that could grow on Mars. C. Mr. Jiang found his flat look as good as new. D. The robot is so much trouble that he doesn’t want to own one. A 【解析】句意“下面那个句子是宾语从句”。A为宾语从句,从句部分为robots will do most of...