How many million species of organisms have been recorded in the world? 2 million?

How much do you know about biology in the world?

Xinhuanet, Beijing, May 21 (Reporter Qin Jie Zou Shengwen) Tomorrow we will usher in a commemorative day with the theme of caring for all things and caring for life - International Day for Biological Diversity. So, how many species of life are there on Earth?

According to environmental experts, scientists once estimated that there were 1.5 million biological species in the world. With the deepening of scientific research, this number has risen to 30 million 50 million. Tropical rainforests are home to more than half of the world's species.

In China, biodiversity is mainly distributed in Guangdong, Guangxi, Fujian, Yunnan, Sichuan and other regions.

The multitude of biological species is the primary manifestation of biodiversity. In addition to species-level diversity, biodiversity includes genetic diversity and ecosystem diversity.

Biodiversity is of high value, not only as a raw material for industry, but also as a source of special genes for humans, such as cold and disease resistance, that make it possible to breed new varieties of plants and animals. Many wild animals and plants are also precious medicinal materials, providing the possibility for the most difficult diseases.

However, with the pollution and destruction of the environment, such as deforestation, vegetation destruction, indiscriminate hunting, indiscriminate harvesting, etc., the world's biological species are disappearing at a rate of one per hour. This is a significant loss of the planet's resources, because once a species disappears, it never regenerates. Disappearing species not only deprive humans of one natural resource, but also cause the disappearance of other species through the plant chain.

Since the 80s of the 20th century, the international community has begun to realize the importance of protecting biodiversity, and has formulated a series of international conventions, the most important of which is the Convention on Biological Diversity.

Due to various reasons, China's biodiversity has also been destroyed for a long time. Since the reform and opening up, China has taken various measures and launched many major projects to actively protect biodiversity. In 1992, my country became one of the first six countries in the world to ratify the Convention on Biological Diversity. (ENDS).

There is no fixed total number of organisms in the world, because there are new species every day.

At present, about 10 million species of organisms have been defined and named on the earth, and many scholars estimate that there are more than 10 million species of organisms that have not yet been discovered.

nbsp;There are many species of life on Earth, but with the destruction of the environment, many organisms are on the verge of extinction. So how many species of life are there on Earth? Let's give you a specific introduction.

Details:

Scientists once estimated that there were 1.5 million biological species in the world, but with the deepening of scientific research, this number has risen to 30 million 50 million. Biodiversity of tropical rainforests.

It is the most abundant, home to more than half of the world's species. At present, there are about 10 million defined and named organisms on Earth, yet many scholars estimate that there are still 10 million species in the world that have not been defined, named, or even discovered.

The main reasons why these organisms have not been discovered are that their life cycles do not intersect with humans, that they only inhabit specific small areas, that they do not have much research value for humans, or that the organisms themselves are too small to be noticed.

In total, the Earth is home to 8.7 million species, with an error of 1.3 million. The new approach covers the eukaryotes on Earth.

The five kingdoms include 7.77 million species of animals, 10,000 species of plants, 10,000 species of fungi, and 10,000 species of protozoa.

10,000 species of algae. The number of animal species will reach 7.77 million, while only 10,000 animal species have been described and classified so far.

Studies have shown that there may be 10 million species of insects in the world, accounting for about half of all living species on Earth. However, there are only 1 million species of insects with names and surnames, accounting for 2 3-3 4 of the known species in the animal kingdom. It can be seen that there are still 90% of the species of insects in the world that we do not know; According to the most conservative estimates, there are at least 3 million species of insects in the world.

More than 16,000 plant and animal species in the world are at risk of extinction, according to the International Union for Conservation of Nature.

These species are threatened by overexploitation, climate change, and habitat destruction worldwide, he said.

Until the mid-60s, scientists thought there were about 3 million species on Earth, and now they believe there are at least 5 million. But many experts point out that the conservative estimate is 10 million. The final total number of animal species is based on the rate of increase in the discovery of the species

There are 4,300 species of mammals, about 8,000 species of birds, 6,000 species of reptiles, 3,500 species of amphibians, and 10,000 species of fish. Recently, surveys of insects in Peru's tropical forests have led to the discovery of many new species, leading to estimates that the total number of species on Earth exceeds 30 million. In the world, the Amazon and Zaire basins are considered to be the most species-rich regions.

Twenty percent of the remaining species grow in Latin American forests outside the Amazon, and another 20 percent in Asian forests and African forests outside the Zaire Basin. To date, the total number of identified species is only 1.4 million to 1.74 million. About 87% of mammals, reptiles, amphibians, birds, and fish have been identified, while most of invertebrates and microorganisms have not yet been recognized, and more than 90% of all plants have not been studied.

As a result, human beings still have a very limited understanding of the abundant species resources, and only a small part of them are exploited.

Studies have shown that there may be 10 million species of insects in the world, accounting for about half of all living species on Earth. However, there are only 1 million species of insects with names and surnames, accounting for 2 3-3 4 of the known species in the animal kingdom.

Answer: More than 14 million species have been discovered and classified by 14 million scientists, which speaks volumes about the diversity of life on Earth.

The number of species is huge, and the number of animals, plants, and microorganisms is about 5 million.

Of the more than 5 million species in existence, 1.6 million have been described.

If you count microorganisms, it is impossible to count them at all. Because bacteria and viruses are constantly evolving new varieties, it is impossible to count.

The mass of the earth, 75 species are extinct every day.

Unable to adapt to the new environment, unable to obtain growing conditions, etc. Unable to adapt to the new environment, they are soon swallowed up by nature, and the lack of growing conditions is soon extinguished by the cycle of the four seasons.

The change of the ecological environment, because the global climate is gradually warming, many organisms are not able to adapt to this climate, so they are on the verge of extinction.

There is also the fact that due to the development of history, many animals have lost their food, so they are on the verge of extinction.

1. Global warming has led to changes in the living environment of some organisms. 2. The development of human industrialization has created a lot of industrial waste. 3. Human beings have a weak awareness of environmental protection and throw domestic garbage into the sea.

Not tens of thousands, but millions. The latest estimate is 8.7 million, and more than 10,000 new species are created every year. There are millions of names by humans alone.

The main reason is the destruction of the environment by human beings. Nowadays, even the highest creatures on the earth have been using their wisdom to change the living environment, which also greatly affects the living environment of other animals.

There are about 10 million known creatures, about 10 million unknown creatures, and about 100 million creatures that have been buried in history--- so it is estimated that there are about 120 million species of creatures on the earth since the formation of the earth!

Some estimate between 5 million and 30 million. It is not yet possible to accurately estimate the exact number of living species on Earth.