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The results are as follows:The results of exploring the tiny world are numerous. The main ones are:
using microscopes to detect bacteria, viruses, and fight diseases; clonal organisms; Using microorganisms to make wine, make noodles, make soy sauce, vinegar, yogurt, etc.; Microorganisms are used to treat garbage and sewage, etc.
Introduction:
Microorganisms include: bacteria, viruses, fungi and some small protists, microscopic algae, etc., a large group of organisms, which are small and closely related to humans. It covers many kinds of beneficial and harmful, and is widely involved in food, medicine, industry and agriculture, environmental protection, sports and many other fields.
In Chinese textbooks, microorganisms are divided into the following eight categories: bacteria, viruses, fungi, actinomycetes, rickettsia, mycoplasma, chlamydia, and spirochetes. Some microorganisms are visible to the naked eye, such as mushrooms, reishi, shiitake mushrooms, etc., which belong to fungi.
There are also microorganisms, which are a class of "non-cellular organisms" that are made up of a few components such as nucleic acids and proteins.
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1."New Horizon" will fly to Pluto to explore the farthest planet in the solar system After decades of probes to explore the planets in the solar system, it is time to visit Pluto, the farthest planet. The U.S. "New Horizon" probe is scheduled to be launched from the Kennedy Space Center with the help of a "Cosmos-5" rocket at 13 o'clock EST on the 17th (1 o'clock Beijing time on the 18th), starting a nine-year space journey.
2.Gravitation and Cosmology Quantum theory and the theory of relativity are the two pillars of physics in the twentieth century, and they are also the most brilliant achievements of physics in the twentieth century. However, the progress of the general theory of relativity, which Einstein himself valued the most, was not satisfactory.
3.The Courage and Opportunity rovers landed on Mars and found evidence of water Other: a
The U.S. supersonic aircraft set a new record for flying at a speed of more than 10,000 kilometers per hour; b.The Cassini spacecraft successfully entered the orbit of Saturn; c.Scientists in South Korea and the United States used cloning technology to obtain human embryonic stem cells for the first time; d.
For the first time, scientists in the United States used nuclear magnetic resonance technology to observe a single electron; e.The United States has developed large-scale hydrogen production technology using nuclear reactors; f.Japan has developed the world's fastest optical communication technology; g.
American astronomers have discovered the most distant large objects in the solar system; h.Important progress has been made in the research of HIV antibodies; i.Scientists in the United States have made molecular motors that can stop or pause.
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Food industry: Observational studies have known that some microorganisms are beneficial to people and that they can improve our lives. For example, making soy sauce, vinegar, moldy tofu, kimchi, dairy products, bread, steamed buns, bacon, etc., all rely on microorganisms.
The principle of using yeast to make dough is that yeast breaks down the sugars in the flour and excretes carbon dioxide. The volume of carbon dioxide expands dramatically when heated, making the inside of steamed bread and bread loose and porous.
Agriculture and forestry: In agriculture and forestry, varieties are improved to improve the quantity and quality of products, and the role of magnifying glasses and microscopes is also fully utilized, such as Yuan Longping's hybrid rice cultivation. Hybrid rice is carried out on the stamens of the rice flowers, and the flowers of the rice are very small and small, so the search for male sterile wild rice and the hybridization work must be carried out using a magnifying glass and a microscope.
The successful cultivation of hybrid rice has not only solved the problem of feeding the Chinese people to a large extent, but is also a magic weapon for solving the global food problem in the 21 st century.
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There are achievements such as resisting and conquering diseases, making wine, kimchi, making dough, making yogurt, cloning organisms, and disposing of garbage and sewage.
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