Why do earthworms drill into the soil? Why do earthworms burrow into the soil?

The main reason for drilling soil is that it is the cultivator of the land, it is the soil loosening, which is his main responsibility, through the loosening of the soil to absorb the nutrients in the soil for his own survival.

Earthworms are invertebrates that belong to the class Worms under the phylum Annelids.

There are many reasons why earthworms burrow into the soil, but the first and foremost is to find food and safety. By drilling into the soil, earthworms can feed on soil particles rich in organic matter and absorb nutrients from them. At the same time, they are also able to sense changes in humidity and temperature in the soil, as well as other organisms and potential predators in the soil.

In addition, earthworms need to maintain a moist environment to maintain their life activities. By drilling into the soil, earthworms can adjust the moisture of the soil and ensure that their living environment is suitable. At the same time, earthworms can also drill into the soil to escape the soil environment that is too dry or too wet, in order to find a more suitable place to live.

In addition, earthworms burrow in the soil to loosen the soil and increase the oxygen content in the soil, which is beneficial for the growth and respiration of plant roots. This loose soil structure is also more conducive to the earthworm's own oxygen**.

In summary, earthworms burrow into the soil to feed, regulate humidity and temperature, protect themselves, and promote oxygen to the soil** and plant growth.

Earthworms like moist places, and the soil contains a lot of water, so it will burrow into the soil.

In the past, earthworms, like bees, had a soft and small body, shining golden wings, and could fly freely into the blue sky and burrow into flowers.

One day, when the earthworm caught a cold, he lay down at home to rest, and the hard-working bees collected honey while helping it find food. After a few days, the earthworm's illness was cured, but it felt very comfortable to lie at home without working and eating, so it lay at home and coquettishly, the bees had no choice but to collect honey by themselves, and the earthworm was at home "purring, purring" and sleeping.

The kind-hearted bee persuaded it: "Brother earthworm, you should quietly swim out to work, if you don't go out and move your wings, your wings will be inflexible and unable to fly in the future." "You lie, how can you not fly with wings?

The bee shook its head and flew away. Since then, earthworms have been eating and sleeping all day long, and they no longer work.

Soon, the earthworm found that its wings were stiff and its body had gained weight, and the earthworm felt very uneasy, so it climbed off the bed, spread its wings and tried to fly, but its wings were no longer as soft and light as before, and it only fluttered a few times before it fell, and finally, the wings "clicked" and broke, leaving only a bulging, long and slippery body. Oh, how can you see people like this, the earthworm cried with regret. The "buzz" was eliminated, and the bees came back from collecting honey, and the earthworms were embarrassed to see the bees, so they had to burrow into the mud and dare not come out.

To this day, the earthworm still hides in the dirt, but after realizing its mistake, it has become much more industrious, and it is constantly loosening the soil.

1. Earthworms use the moisture of their whole body to drill through the soil. In between, it will not hurt the body because of its own wetness. The body wall of an earthworm is composed of the stratum corneum, epithelium, cerricular, longitudinal muscle, and body cavity epithelium.

2. The outermost layer is a single layer of columnar epithelial cells, the body of the earthworm is like a round slender tube, both ends are pointed, and the front end of its body is called the anterior lobe, where the flesh is very thick and the elastic force is also strong; The longitudinal muscle layer of some somites of earthworms shrinks.

The movement and excrement of earthworms are very beneficial to improving the quality of the soil, keeping the soil permeable well, keeping the soil in a healthy state, and playing a very important role in agriculture, and it is regarded as "one of the basic organisms in the world".

Earthworms are also food for many higher organisms**. Vermicompost is rich in nutrients such as nitrogen, phosphorus, potassium and microorganisms, and is the most natural fertilizer.

Because earthworms respond to most agricultural and herbicides, the quality and toxicity of the soil can be judged by observing earthworms.

Earthworms have negative phototaxis behavior, live in moist, loose, and fertile soils, and feed mainly on decaying leaves. Most earthworms can eat food equivalent to their body weight every day. It eats the soil into the body, absorbs the microorganisms, and then discharges the indigestible sand.

It is generally believed that the lifespan of earthworms is less than five years, but there is controversy.