Fourth grade essay my findings 20

My findings. I'm not in a good mood today, so I always keep my head down and walk casually on the road.

At this time, a small black line "walked" slowly in front of me, earthworm, I was stunned for a moment, and took a few steps back. "Nothing to be afraid of, it's just a disgusting little thing. I said to myself.

By the way, what kind of environment is earthworms suitable for? Are earthworms pests or beneficial insects? Earthworms ......"A whole bunch of strange questions came to my mind that made me extremely curious about earthworms.

I grabbed the earthworm with a small stick, put it in a cardboard box, brought it home, and put it in a pot filled with dirt. Over the weekend, I was surprised to find the earthworm burrowing up and down in the dirt of the pot, what was it doing? At this time, my mother came up to me and told me

The specialty of earthworms is to drill soil, which can play a role in loosening the soil. "Oh, I see, what is it loosening the soil for? Is there a treasure in the soil?

At this time, Dad came and said, "Every animal has its own way of life. "And asked me to check the relevant information.

I found the Chinese Juvenile Encyclopedia from the bookcase and consulted it, and now I understand everything.

Earthworms ......This eyeless animal prefers to live in moist, loose soil, eats humus and other debris containing organic matter, and has well-developed tactile senses that respond sensitively to ground vibrations, noise, light and darkness. Spring and autumn are the seasons when earthworms grow and reproduce. It is very regenerative and produces an embryonic mesenchymal cell that differentiates into various tissues and continues to survive when injured or severed (not near the front of the head).

The earthworm's hard work loosens the soil, which is good for crops, and its manure is also a highly effective organic fertilizer. According to statistics, every 100,000 earthworms can be discharged in a year.

Six or seven tons of manure. It has a mixed diet and is used by countries around the world to dispose of large amounts of garbage. A major factory in Japan farms 1 billion earthworms to treat 50 tonnes of paper waste that are discharged every day.

In addition, earthworms can also be used as food, and the annual amount of earthworms in the world reaches billions of dollars. Earthworms rich in high protein are edible, dried earthworms contain more than 70 protein, and fresh earthworms are about 40. There are more than 2,500 species of earthworms in the world, about 2,000 species in China, and the largest earthworm is the giant worm living in Australia, which can reach 123 cm in length!

Through the connection between theory and practice, I learned that the earthworm is not bad, it is also a soil scarifier, a good helper for farmers, a friend of crops, and a beneficial insect for human beings, so we should not harm it for no reason!

Hope!!!