What are the direct and root causes of biodiversity?

Biodiversity is produced by the adaptation of organisms to different living environments, according to your problem:

The root cause: It is because of the diversity of genetic material (genes) that the traits of organisms are controlled by genes, and what kind of traits there are are because there are genes in the body that control this trait!

Direct cause: the result of the selection of various traits of organisms in the changeable environment, the theory of natural selection talks about 'survival of the fittest', the adaptation of organisms to the environment directly affects the survival of organisms, the survival of the fittest, and the unfit are eliminated!

Root cause: The genetic material is different, as long as the topic mentions the root cause, no matter what the question is, it is from the perspective of genetic material, it can be said that DNA diversity, genetic diversity, etc.

Direct cause: from a protein point of view. The type, number, and order of amino acids that make up proteins. Because proteins are the direct bearers of life activities.

The immediate cause of biodiversity is protein diversity;

DNA diversity, the root cause of biodiversity.

Further information: Biodiversity typically includes three components: genetic diversity, species diversity and ecosystem diversity.

1. Genetic diversity is an important component of biodiversity. Genetic diversity, in a broad sense, refers to the sum total of the various genetic information carried by organisms on Earth. This genetic information is stored in the genes of an organism.

2. Species diversity: This is the core of biodiversity. A species is the basic unit of taxonomy. What is a species has always been a question discussed by taxonomists and phylogeneticists.

3. An ecosystem is a natural complex composed of various organisms and their surrounding environment. All species are part of ecosystems. In the ecosystem, not only are species interdependent and mutually restrictive, but also organisms interact with various environmental factors around them.

Reference Encyclopedia, Species Diversity"> encyclopedia, species diversity.

Root cause: It is the foundation for human survival and development.

Direct cause: All plants, animals and microorganisms on Earth.

All the genes they have and a wide variety of ecosystems.

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Adaptation. Same.

Environmental production. According to.

Issue. Analysis: Fundamental Principle.

Genetic material (base. Sex. Thing.

Characters. by the base.

Control. Characters.

Body. Control. Characters. Base.

Directly original. Change. Environment. Thing.

Various traits are selected. Knot. Self.

Choose. Talk about 'fittest. Storage.

Environment. Adaptation has a direct impact. Thing. Exist.

The fittest. Exist. The fittest. Eliminate.

Biodiversity refers to the abundance of species of life on Earth. Biodiversity is often a measure of genetic, species, and ecosystem-level variation. Biodiversity includes the diversity of biological species, the diversity of genes and the diversity of ecosystems.

The significance of biodiversity is mainly reflected in the value of biodiversity, which has direct use value, indirect use value and potential use value for human beings.

Why is biodiversity so important?

On the earth we live in, there are plants, animals, microorganisms, viruses and, of course, humans.

There are symbiotic coexistence and food chain connections between living things. For example, in an orchard full of mountains, if there is no bee pollination, the fruit trees may reduce production, and if the plants do not bloom, the bees will die if they do not collect pollen and nectar.

In the ocean, if there are no planktonic microorganisms, there will be no food for fish and shrimp, and there will be no small fish and shrimp, and large fish will also become extinct due to lack of food. The extinction of large fish will lead to the proliferation of some fish species, thus leading to the extinction of other types of organisms.

The conservation of biodiversity is about sustaining the interdependence between plants and animals. Protecting the diversity of living things is actually protecting the survival of human beings.

The survival of living things on Earth is interdependent, and without herbivores there can be no survival, and without herbivores, carnivores cannot survive. Conversely, without carnivores to control the herbivore population, herbivores will grow wildly and destroy vegetation. Therefore, the food chain is interlocking, even pests, even man-eating beasts are indispensable in the food chain, and maintaining biological diversity is to protect our beautiful earth.

Biological diversity provides abundance and meets the survival needs of all animals and human beings, and without biological diversity, there would be no animal world, and there would be no human beings, so biodiversity is very important to human beings.

The main feature of sustainable development is ecological sustainable development, so biodiversity is an important indicator of human sustainable development.

There are all kinds of organisms in nature, both animals and plants, so that the production environment can be more healthy. The impact of biodiversity on the earth is very large, if the biodiversity is particularly small, then the local ecological environment must be very poor, and it will also affect people's normal life. That's why it's so important.

Biodiversity refers to the many types and diversity of living things. Biodiversity is important because it has the beneficial impact it can have on the lives of many people. It can also help us study a wide variety of organisms.

It can have very high scientific value, and it can also lay some biological significance.

Biodiversity is the division of organisms into many species, and also into many diverse types. The reason why it is important is because biodiversity, which has a very important scientific value, also has a very good impact on our lives. There are also many things that can be decided.

It's a term. Because there are a lot of things that can be studied, and the environment can be promoted, there can be better research value.

The fundamental reason for the formation of biodiversity is the diversity of genetic information.

Any species or individual organism has a large number of inherited genes, so it can be regarded as a gene pool. The richer the genes a species contains, the more adaptable it is to its environment. Genetic diversity is the basis for the evolution of life and the differentiation of species.

Genetic diversity in the narrow sense refers primarily to changes in genes within species, including genetic variation between significantly different populations within species and within the same population (WRI, 1992).

In addition, genetic diversity can manifest itself at multiple levels, such as molecular, cellular, individual, etc. In nature, for the vast majority of sexually reproducing species, there is often no exact same genotype between individuals within the population, and the population is made up of these multiple individuals with different genetic structures.

Co-evolution. The process of biological evolution is actually the process of co-evolution between organisms and organisms, organisms and inorganic environments, and co-evolution leads to the formation of biodiversity. In the long-term evolution of organisms, changes (or mutations) in genetic material are the root cause of genetic diversity.

The reasons for the formation of biodiversity can be summarized as ( ).

a.Genes are mutated.

b.Natural selection.

c.Co-evolution.

d.Geo-isolation.

Answer: c. The diversity of biological species refers to the richness of biological clocks (including animals, plants, and microorganisms) in a certain area, such as 1244 species of birds and 3000 species of angiosperms in China, that is, biodiversity and its changes at the species level.

Genetic diversity refers to the genetic changes within individuals or populations of a species, and the traits of organisms are determined by genes, and the traits of different organisms vary widely, indicating that there are thousands of genes.

The genetic composition of different species (rabbit and wheat) varies greatly, and the genes of the same species such as rabbits (white, black, gray, etc.) are also different, and each species is a unique gene pool. The diversity of genes determines the diversity of biological species. The diversity of biological species makes up different early state systems.

Standard Answer: The external form of genetic diversity is the diversity of biological species.

The intrinsic factor that determines it is the diversity of genes, and the extrinsic factor is the diversity of ecosystems.

Therefore, the whitespace criterion answer should be written about the diversity of genes.

Genetic diversity represents variation in the genetic structure of organisms within and between populations. Each species consists of a number of populations consisting of several individuals. Individual populations tend to be genetically different due to mutation, natural selection, or other reasons.

Biodiversity, an ecological term, is a broad concept that describes the degree of diversity in the natural world, and different scholars have proposed a variety of definitions.

In the book "Conservation Biology", Jiang Zhigang et al. define biodiversity as:"Biodiversity is the ecological complex formed by organisms and their environments and the synthesis of various ecological processes related to them, including animals, plants, microorganisms and their genes, as well as the complex ecosystems in which they live and their habitats"。

The deterioration of the living environment and human hunting have led to the reduction of biological populations, and the disappearance of alleles has been caused by reputation. The result is a decrease in diversity.

Hope it helps.

What are the reasons for the drastic decline in biodiversity.

There are many reasons for the loss of biodiversity, which can be summarized in five main aspects: first, the loss and fragmentation of biological habitats, the reclamation and expansion of land by man, the sharp reduction and fragmentation of undisturbed natural habitats, environmental pollution and climate change have also caused the disappearance of species; the second is desertification, which accounts for 30% of the world's land area and is still expanding; Third, over-exploitation and consumption, a large number of wildlife resources have been over-exploited and utilized, resulting in a serious decline in biodiversity; Fourth, biological invasion, the invasion of scattered species from the outer tombs has caused the living environment of many local species to deteriorate, changed the composition of the ecosystem, and caused the loss or even extinction of some species in the local area; Fifth, the impact of large-scale agricultural production, the large-scale production mode of the farmer Wang Duan industry will indirectly cause the loss of a large number of crop varieties and livestock varieties cultivated and stored by farmers for thousands of years, and affect the genetic diversity.

Causes of biodiversity loss.

Human deforestation has led to a decrease in animal habitat, so many animals have become extinct, so diversity has decreased.

What are the causes of the destruction of biodiversity.

There are many reasons for the destruction of biodiversity in China, and the main reasons are as follows.

First, the large population is the main cause of ecological and environmental damage. With the growth of China's population and economic development, the demand for natural resources is increasing. Deforestation, overgrazing.

Unreasonable reclamation of lakes, swamp reclamation, and excessive use of land and water resources have led to the destruction or even disappearance of the living environment of organisms, affecting the normal survival of species, and a considerable number of species have quietly become extinct without human beings noticing.

Second, environmental pollution has brought disaster to the survival of many organisms. A large amount of urban and rural industrial and agricultural sewage and air pollutants are discharged, especially the hazards of acid rain, heavy metals and the enrichment of long-term pesticide residues, so that many aquatic and terrestrial organisms and ecosystems are on the verge of extinction due to environmental degradation.

Third, indiscriminate hunting, domestic reselling and smuggling of wild animals are becoming increasingly serious.

Fourth, the construction of large-scale water conservancy projects destroys biodiversity The construction of large-scale water conservancy projects has caused the isolation of rivers and lakes, destroyed the habitats of aquatic organisms, blocked the migratory passages of some fish, and put some species in danger.