What is the food chain in the world?

Food chain: the relationship between consumers and producers, mainly the relationship between eating and being eaten, thus forming a food chain.

Food web: In an ecosystem, there are often many food webs, which are interrelated and interwoven into a network, thus forming a food web.

Food chain and food web are the basis of the nutritional structure of ecosystem, and they are the channels of material and energy circulation in ecosystem.

Man is at the top of the food chain, and man and nature are very beautiful and develop together, with a food chain and an ecological circle. People feel healthy in nature.

Where do humans come from? Where will it go? This eternal mystery is actually the Millennium Development Plan of mankind. In the nearly 10,000 years of human civilization evolution, human beings are completely ignorant without strategy, planning and planning. Due to aimless and aimless blind development, human society often suffers from wars, plagues, hunger, extreme poverty, genocide, terrorist attacks, environmental pollution, ecological imbalance, public security chaos, traffic jams and economic crises, and the world is in chaos. If the Millennium Development Plan of mankind is formulated, the goal and direction are determined, and the future is grasped, mankind can develop peacefully, rapidly and healthily, create rich material civilization and spiritual civilization, and live comfortably and happily.

It is necessary to accurately predict the future when making the development plan for the new millennium from 2000 to 2000. Looking back on the past development of human beings, there is always a main line that runs through human life and promotes the slow development of human society. What is this main line? It is the evolution of human social industry. Today, mankind has gone through the development stages of hunting, agriculture and industry, and achieved brilliant development achievements. But facing the future, what industrial stages will mankind go through? According to the principle that industry comes from social demand, as long as we can accurately capture the total social demand in each development period of human society, we can determine the social leading industry at this stage.

The progress of human civilization is supported by the industries of the times driven by social needs, and the advanced nature of civilization lies in the advanced industries that carry civilization. The development scale and quality of these industries are the symbols of human civilization. Therefore, it is necessary for us to explore and foresee the industries that will support and promote the evolution of human civilization in the future. Looking back on the past and looking forward to the future, according to the law of social demand, we can accurately analyze the industrial stages experienced by mankind and look forward to the future industrial development of mankind.

The needs of human survival and development constitute social needs, and under the impetus of this huge social demand, human social industries came into being. Looking back on the 10,000-year history of human civilization, human beings have experienced three stages of human social industry: gathering and hunting, agriculture and industry. Looking forward to the future, after the end of industrial industry, according to the law of social demand, human social industry will gradually evolve into urban industry, human exploration industry and space immigration industry. We can see that the emergence of every industry is a historical phenomenon, and there is a development process of early gestation, rapid growth, leading society and evolution. After completing its own evolution cycle, every leading industry in society will produce higher-level human needs. The industry formed by this demand will not only become the trend of the times, but also have a particularly high economic added value, which will stimulate all resources of the whole society to actively serve it, thus promoting its further development and growth. This is the inevitable result of the industrial evolution of human society. If we take the leading industries in all stages of human social development as the yardstick and arrange all stages of human civilization evolution in their order, we can truly and vividly paint a new picture of all stages of human civilization evolution: gathering and hunting, agriculture, industry, urban industry, human self-exploration and space migration. So we can see that the evolution theory of human industry is a cross-sectional anatomy of every social form. Whether it is primitive society, modern society or future society, every social form will produce a major industry and become the leading industry of the leading society. This society is characterized by this industry-hunting age, agricultural age, industrial age, urban age, human self-exploration age and space migration age. It can be seen that the sequence structure of the whole evolutionary history of human civilization has been clearly presented to the world.

3 million years ago, human wisdom began to sprout; 65,438+0,000 years ago, people were self-sufficient with creativity; /kloc-The airplane was invented only 0/00 years ago, and the human dream rose from the ground to the air. 10 years ago (that is, 1997), a spaceship made by human beings has landed on Mars. As you can imagine, the rapid progress of science and technology has enabled mankind to complete the three industrial eras of urban industry, human self-exploration industry and space immigration industry in only 300 years. Therefore, after 300 years, human beings will no longer be "earthlings" but "cosmic people". In other words, the history of human beings on the earth is still 300 years.

Is 300 years too short? Just like an airplane can take off after taxiing for a certain distance. Today, after 10 thousand years of very slow start, human society has accumulated enough power to take off, and the speed will be faster and faster. According to the amazing development speed of science and technology, it can be predicted that 2 1 century will be an era of 10 speed, the 22nd century will be an era of 100 speed, and the 23rd century will be an era of 1000 speed. That is to say, the development speed of human society in 2 1 century is 10 year, in the 22nd century it is 1 year and in the 23rd century it is 100 year. Therefore, 300 years later, the advanced technology mastered and applied by mankind is unimaginable today.

Humans are eager to grasp the future, but they can't clearly predict it. From the height of the unity of great history and great logic, The Evolution of Human Industry opens a new window to reveal the evolution law of human civilization by using the law of human needs, and guides human eyes to a greater future than anything else. In this window, we can not only see the three levels of human civilization in the past, but also gain insight into the evolution track of human civilization in the future. Now, mankind is in a great turning point when industry has just completed its historical mission and human civilization has evolved to a higher level. Nowadays, the social productive forces have developed to a high level, and they can produce almost anything they want. A large number of material wealth supply began to be selected by consumers, and there was a surplus of production capacity and material products. At present, the global cultural demand is strong, and the production of spiritual wealth begins to occupy an increasingly important position. This rapid change in social consumption has prompted people to re-examine their traditional thinking and understanding, and think that demand is as important as supply, consumption and production, even more important than supply, and consumption is more important than production. Looking back on the Millennium history, the course we have gone through tells us that with the increasing ability of human beings to produce material wealth, the labor time spent is less and less, and the surplus products are more and more, which have created sufficient conditions for the change of human lifestyle.

Now, when we look around the world, we still find a phenomenon. Among the human social industries in the world, the poorest and most primitive areas are still engaged in gathering and hunting, while developing countries are engaged in traditional agriculture, middle-class countries are engaged in export-oriented industrial processing, and the richest countries and regions have entered the post-industrial society and engaged in the information industry of knowledge economy. What does this phenomenon mean? If we analyze it from the perspective of great history, people will naturally see the trajectory of human industrial development, and naturally see that the mastery and application of human industrial evolution has a great guiding role in the survival and development of any country and nation. A country's advanced and stale lies in whether it can keep pace with the times, whether it can accept the latest discoveries of social sciences, and whether it can adjust its way of thinking, which will ultimately affect the development level and speed of a country and even determine their fate in a certain historical period. Now, human social industry has evolved to the stage of "urban industry". This once-in-a-lifetime historical opportunity has put all countries in the world on the same starting line. Who can keep pace with the times, take the lead in advocating and vigorously developing "urban industry", who can immediately put aside many international competitors and lead the world. And this, perhaps, is the important practical guiding significance of the academic value of the theory of human industrial evolution.