What happens to dead animals and plants in the event of an external action?

After decay, it will decompose into basic inorganic substances such as inorganic salts.

etc., provided to plants to absorb, to provide basic elements for production, so it is said to be an ecosystem.

The basis of the cycle, if the lost animals do not decay, the plants cannot absorb the nutrients they need from the land, the whole ecosystem can only flow from plants to animals, then it is one-way, can not be cycled, their corpses are covered with soil, and the soil is corrosive, and they are decomposed to obtain a certain amount of nutrients, so as to promote the soil to be more fertile, and the ecosystem is more stable, and the cells have cell membranes, cytoplasm, nucleus, and mitochondria.

In addition to cell membranes, cytoplasm, mitochondria, and nucleus, plant cells also have cell walls, and some vacuoles and chloroplasts. The cell membrane is mainly used to protect the cell and control the exchange of substances between the cell and the outside world. <>

Cells are dying in every moment of the human body, and at the same time, cells are being reborn, and when people die, there are also dead cells in various parts, and there are cells that still maintain physiological activity. Because human death is an extremely complex process, scientists have not yet figured out what death is and the real signs of death, so the changes in the corresponding cells of the human body are extremely subtle. Many cells are broken down by microorganisms.

There are also those who die naturally (just like when people are alive), because there are no new cells, so we can only wait for all the cells in the human body to die. Of course, the brain, as a central organ, dies in batches after the death of a person, and the human mind begins to gradually stop as the brain cells die, as if they were asleep. <>

Under the influence of the outside world, the vast majority of dead animals and plants will decompose into organic and inorganic matter, or be converted into other substances, such as coal, oil, natural gas, etc., or retain a small amount of residues, or become fossils, such as petrified wood, fossils, etc.

Almost all plants are subject to external influences and will change.

The main factors that affect plants are fertilizer, water, sunlight, etc.

There are other factors such as sound, pollution, etc.

The question you asked, of course, there are such plants, and mimosas are like this, you move them and the leaves come down and close, and then they will recover.

Sunflowers change depending on the position of the sun.

You mean the disappearance of the number of species on Earth?

Many species disappear every day, but at the same time, many new species are born.

The earth is a closed loop with strong environmental self-healing ability, and everything inside it is cyclically adapted, and when the environment changes, the environmental variables are changed.

The matching flora and fauna will also change. When a species disappears, it will affect the species it matches, and the related species will either disappear together in chains, or find a surrogate to evolve and fill, and when the evolutionary filling, a new species will be generated.

For example, when chickens disappear, humans replace them with other trembling heads, or breed new ones.

B test question analysis: bacteria, fungi and other decomposers can decompose the organic matter in the remains of animals and plants into carbon dioxide, water and inorganic salts and other inorganic substances and return them to nature, which plays an important role in the material cycle in nature

In nature, the remains of animals and plants will not pile up, because some of the bacteria and fungi that live in the saprophytic life decompose the remains of animals and plants into carbon dioxide, water and inorganic salts, and these substances can be absorbed and utilized by plants, and then produce organic matter

Therefore, d