Characteristics of earthworm

1, like dark and humid places, like fertile soil.

2. I like quiet places and avoid noise.

3, like warm and cold, in the weather below 8 degrees, earthworms stop growing and developing.

Earthworms still like animals living alone, especially elders who don't like to get along with their children for a long time.

Physiological characteristics of earthworm:

1, afraid of strong light.

2, afraid of vibration, which is similar to earthworms like quiet.

3, afraid of water, earthworms can not soak in water for a long time.

4, afraid of spicy and other irritating things.

5, afraid of extreme weather, overheating and supercooling have a great influence on earthworms.

6. One of the most important characteristics of earthworms is hermaphroditism and heterofertilization.

External characteristics of earthworms:

1, the body is cylindrical, symmetrical on both sides and chain-like.

2. Earthworms have no bones and belong to invertebrates, with bare body surface and no cuticle.

3. Colors are brown, khaki and dark brown.

Extended data:

Earthworms have a very important influence on the soil, and they are known as natural soil guards, and also known as "ecosystem engineers". Through feeding, digesting, excreting, digging holes and other activities, they form countless reaction circles inside and outside the body, thus affecting the biological, chemical and physical processes of the ecosystem.

At the same time, earthworms not only have an impact on their own soil, but also the excrement discharged by earthworms is good for both soil and crops. Earthworm manure is mainly used for biological fertilizer, soil improvement, detoxification, adsorbent, pest control and so on.

In addition to the above two functions, earthworms have been used to treat human diseases since ancient times. Earthworms are called lumbricus in traditional Chinese medicine, and there are earthworms in 67 kinds of animal medicines collected in Shennong Materia Medica, the earliest monograph of traditional Chinese medicine. It is classified as inferior medicine in Shennong Materia Medica Classic, which has the functions of clearing away heat, relieving convulsion, dredging collaterals, relieving asthma and diuresis.

Li Shizhen said in Compendium of Materia Medica that it has the functions of dredging meridians, promoting blood circulation and removing blood stasis, and preventing and treating cardiovascular and cerebrovascular diseases. Compendium of Materia Medica has more than 40 medicinal functions. In modern Chinese medicine technology, earthworm is also widely used.

Baidu encyclopedia-earthworm

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