B Cell Development

2024/04/1007:08:04 science 72663

B Cell Development - DayDayNews

B Cell Development - DayDayNews

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Millions of years ago, a group of apes gathered together on the African continent. They were no longer frequent visitors in the trees, but instead galloped on the grasslands. Like most predators, they began to pursue prey. Of course, human civilization at that time It has not yet - DayDayNews

Millions of years ago, a group of apes gathered together on the African continent. They were no longer frequent visitors in the trees, but instead galloped on the grasslands. Like most predators, they began to pursue prey. Of course, human civilization at that time It has not yet

Russian fishermen accidentally salvaged a "chip" from 250 million years ago. Is the earth's civilization recycling?

05/15 1400

Have you noticed such a pattern? When you sleep alone, you don’t sleep very well. You often wake up immediately due to some movement, or you dream all night. When you wake up the next day, you don’t have any energy. You always feel that Not getting enough sleep. If you sleep in t - DayDayNews

Have you noticed such a pattern? When you sleep alone, you don’t sleep very well. You often wake up immediately due to some movement, or you dream all night. When you wake up the next day, you don’t have any energy. You always feel that Not getting enough sleep. If you sleep in t

Does sleeping with a partner make you sleep worse or better? Study: Sleeping with two is better

05/16 1648

Introduction: A short, stemless plant in the mountains has a strange name and is known as "Duyiwei". Its functions are comparable to "Jinchuang Medicine". Our country has a vast territory, rich wild resources, and wide distribution. Whether in meadows, fields, or even mountains, - DayDayNews

Introduction: A short, stemless plant in the mountains has a strange name and is known as "Duyiwei". Its functions are comparable to "Jinchuang Medicine". Our country has a vast territory, rich wild resources, and wide distribution. Whether in meadows, fields, or even mountains,

A short, stemless plant in the mountains, known as "Unique", its functions are comparable to "Golden Medicine"

05/16 1874

The topic of genetic engineering, just like AI technology, has always been a mysterious territory in our hearts. But they seem to be closely related to our lives and even affect the development of human progress. - DayDayNews

The topic of genetic engineering, just like AI technology, has always been a mysterious territory in our hearts. But they seem to be closely related to our lives and even affect the development of human progress.

Maybe there is a code for love hidden in human genes itself

05/15 1706

The characteristics of ceramsite lightweight partition boards can be summarized in eight words - safe, comfortable, fast, environmentally friendly ceramsite wall panel production sample ceramsite partition boards are made of cement and ceramsite slurry mixed, foamed and solidifie - DayDayNews

The characteristics of ceramsite lightweight partition boards can be summarized in eight words - safe, comfortable, fast, environmentally friendly ceramsite wall panel production sample ceramsite partition boards are made of cement and ceramsite slurry mixed, foamed and solidifie

A new type of environmentally friendly building material - ceramsite wall panels

05/17 1015

When a meteorite falls into the earth, it will rub against the earth's atmosphere and burn. If the meteorite is large enough, we will be able to see a flying fireball. In this case, if we throw a raw egg down while flying on an airplane, will it turn into a mature egg when it lan - DayDayNews

When a meteorite falls into the earth, it will rub against the earth's atmosphere and burn. If the meteorite is large enough, we will be able to see a flying fireball. In this case, if we throw a raw egg down while flying on an airplane, will it turn into a mature egg when it lan

If you drop an egg from an airplane, will it be cooked when it hits the ground? I can't eat it anyway

05/16 1552

Jeffrey Sachs, chairman of the Lancet COVID-19 Committee, said: The new coronavirus does not have any natural origin. Rather, it was produced in an accident in a US biotechnology laboratory. - DayDayNews

Jeffrey Sachs, chairman of the Lancet COVID-19 Committee, said: The new coronavirus does not have any natural origin. Rather, it was produced in an accident in a US biotechnology laboratory.

Chairman of the Lancet COVID-19 Committee: The virus may have originated in a US biological laboratory

05/16 1693

A strange crystal that scientists have never seen before. Strange crystals under an electron microscope. Taskaev On February 15, 2013, a mysterious fireball streaked over Chelyabinsk in southern Russia. According to estimates, scientists believe that this is an asteroid with a di - DayDayNews

A strange crystal that scientists have never seen before. Strange crystals under an electron microscope. Taskaev On February 15, 2013, a mysterious fireball streaked over Chelyabinsk in southern Russia. According to estimates, scientists believe that this is an asteroid with a di

Nine years after a mysterious fireball fell in Russia, scientists discovered something strange there

05/16 1818

A few days ago, the Event Horizon Telescope (EHT) collaboration held simultaneous press conferences in various places around the world, including Shanghai, to show the public the first photo of the supermassive black hole at the center of the Milky Way. Similar to the first black - DayDayNews

A few days ago, the Event Horizon Telescope (EHT) collaboration held simultaneous press conferences in various places around the world, including Shanghai, to show the public the first photo of the supermassive black hole at the center of the Milky Way. Similar to the first black

It took 5 years of "photography" and "development", but the imaging process of the first photo of the black hole in the center of the Milky Way was so difficult

05/16 1953

Plants are grown in complete darkness in an acetate medium that replaces biophotosynthesis. Researchers are developing artificial photosynthesis to help make food production more energy efficient on Earth and perhaps one day on Mars. Photosynthesis has evolved in plants over mill - DayDayNews

Plants are grown in complete darkness in an acetate medium that replaces biophotosynthesis. Researchers are developing artificial photosynthesis to help make food production more energy efficient on Earth and perhaps one day on Mars. Photosynthesis has evolved in plants over mill

Artificial photosynthesis could produce food in complete darkness

05/16 1335

Atoms were once considered to be the basic particles of everything in the world, but later people discovered that atoms are composed of nuclei and electrons, and there is a vast space between the nuclei and electrons. How vast is it specifically? Let us take the simplest atom in - DayDayNews

Atoms were once considered to be the basic particles of everything in the world, but later people discovered that atoms are composed of nuclei and electrons, and there is a vast space between the nuclei and electrons. How vast is it specifically? Let us take the simplest atom in

What exists in the vast space between the nucleus and the electrons? Is it an absolute vacuum?

05/18 1428

I once read "Insects" when I was young, and I was full of yearning for the insect world described by Fabre. I often turned over stones or inspected leaves to look for the small insects hiding in the depths. As I get older, I gradually develop an inexplicable fear of insects in na - DayDayNews

I once read "Insects" when I was young, and I was full of yearning for the insect world described by Fabre. I often turned over stones or inspected leaves to look for the small insects hiding in the depths. As I get older, I gradually develop an inexplicable fear of insects in na

An insect pocket book that brings you closer to nature

05/18 1720

We often say that China has five thousand years, which naturally adds up to ten thousand years. Ten thousand years ago is a very interesting node, because it is the time period when humans turned from hunting life to farming. Farming represents villages, and the combination of vi - DayDayNews

We often say that China has five thousand years, which naturally adds up to ten thousand years. Ten thousand years ago is a very interesting node, because it is the time period when humans turned from hunting life to farming. Farming represents villages, and the combination of vi

Could it be said that humans more than 12,000 years ago really existed?

05/18 1065

@真知新ordinate Popular science and cold knowledge 1. Lamprey Lamprey has lived on the earth for hundreds of millions of years, and it has always maintained its appearance in ancient times, so it is also called a "living fossil." Later this creature was assigned to the superclass Ag - DayDayNews

@真知新ordinate Popular science and cold knowledge 1. Lamprey Lamprey has lived on the earth for hundreds of millions of years, and it has always maintained its appearance in ancient times, so it is also called a "living fossil." Later this creature was assigned to the superclass Ag

Seven exotic species, one relies on breeding and one is prohibitive

05/18 1704

When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock - DayDayNews

When you see a cockroach, do you still kick it and send it to its death? As everyone knows, if you do this, not only will the number of cockroaches in your home not decrease, but they will increase in number. So, why does this happen? The more cockroaches you fight, the more cock

Don’t step on cockroaches in your home! How to control cockroaches that are still alive even though their heads are severed?

05/18 1074

The editor has recently become obsessed with ferns. Their leaves generally have a mathematical beauty like the golden ratio. There are many types, and most of them are beautiful. They can be seen in forests, riversides, and in the courtyards of ancient houses. Fern and nautilus a - DayDayNews

The editor has recently become obsessed with ferns. Their leaves generally have a mathematical beauty like the golden ratio. There are many types, and most of them are beautiful. They can be seen in forests, riversides, and in the courtyards of ancient houses. Fern and nautilus a

Fragrant garden | "Pteridophylla fern", the "living fossil" of the plant world

05/18 1059

July has arrived, and the crazy bombardment of the 618 Carnival Shopping Festival has not made manufacturers choose to take a break, but more actively promote the release of new phones. It is reported that at least 13 new Snapdragon 8+ models will be launched this month. Today, B - DayDayNews

July has arrived, and the crazy bombardment of the 618 Carnival Shopping Festival has not made manufacturers choose to take a break, but more actively promote the release of new phones. It is reported that at least 13 new Snapdragon 8+ models will be launched this month. Today, B

July 2022 mobile phone preview, 10 new phones are ready for launch, each one is desirable

05/18 1547

Li Jingze once said in the preface of "Skins": "Tsai Chongda was born in the 1980s. I once said that since the 1970s, in literary writing, his father has disappeared. Either he has gone far away or his face is blurred. He is no longer The object of respect, fear, scrutiny, and re - DayDayNews

Li Jingze once said in the preface of "Skins": "Tsai Chongda was born in the 1980s. I once said that since the 1970s, in literary writing, his father has disappeared. Either he has gone far away or his face is blurred. He is no longer The object of respect, fear, scrutiny, and re

Those born in the 1970s are miserable but happy. Boys are like boys and girls are like girls. I really can’t tell the difference between men and women born in the 2000s.

05/18 1411

A woman from Jiangxi went to her boyfriend's hometown in Fujian and complained that she wasn't used to the food in the restaurant. She bluntly said that she wanted to break up. When two people are together, eating becomes very important. As the saying goes: "If you can't eat toge - DayDayNews

A woman from Jiangxi went to her boyfriend's hometown in Fujian and complained that she wasn't used to the food in the restaurant. She bluntly said that she wanted to break up. When two people are together, eating becomes very important. As the saying goes: "If you can't eat toge

A woman from Jiangxi went to her boyfriend's hometown in Fujian and had a huge quarrel because she was not used to the food and almost broke up.

05/18 1688

There are various reasons for men to cheat, and there are many different types. However, the experience and performance of the whole process of cheating are similar, and they all go through the same stages. To sum up, there are four stages for men to cheat. Understand this. - DayDayNews

There are various reasons for men to cheat, and there are many different types. However, the experience and performance of the whole process of cheating are similar, and they all go through the same stages. To sum up, there are four stages for men to cheat. Understand this.

There are four stages when a man cheats, and wives should understand these

05/18 1617

The opening chapter of the Three-Character Classic is: "In the beginning, human nature is inherently good." People's hearts are inherently kind, but it is only due to different experiences that people have different human natures. Therefore, not all people are kind. Remember, "Yo - DayDayNews

The opening chapter of the Three-Character Classic is: "In the beginning, human nature is inherently good." People's hearts are inherently kind, but it is only due to different experiences that people have different human natures. Therefore, not all people are kind. Remember, "Yo

Society is progressing, but people's aspirations remain unchanged. Carry forward traditional virtues and let integrity take root and sprout

05/18 1132

Qiqi is just a toddler. In his childhood world, besides his parents, there are more grandparents. When an elegant grandma appeared in his world one day, there was no strangeness or discomfort, but excitement from the bottom of his heart. The child's emotions are real and there ar - DayDayNews

Qiqi is just a toddler. In his childhood world, besides his parents, there are more grandparents. When an elegant grandma appeared in his world one day, there was no strangeness or discomfort, but excitement from the bottom of his heart. The child's emotions are real and there ar

Thousands of rivers and thousands of mountains cannot stop the blood connection

05/18 1764