Chapter 378
Cell division?
He opened the encyclopedia and took a quick glance at the intracranial storm.
The flat worm he saw just now, its scientific name is on the encyclopedia...
"Prokaryotic cells, these single-celled organisms are the origin of all life!"
"And now, eukaryotic cells have a more complex structure than prokaryotic cells, and they have self-replicating DNA."
"It is precisely because DNA has infinite The structure of replication allows the original lifeforms to spread all over the planet and evolve into countless species. After all, there was no reproduction at the beginning. Reproduction is also a function only after biological evolution. The original lifeform wanted to expand its own race. , Relying on the special attribute of DNA......"
Tang Zheng retracted his gaze from the encyclopedia, with a look of shock in his eyes.
In this way, DNA (deoxyribonucleic acid), the great hero at the beginning of life of all things, is the most legendary thing.
It's like learning to copy itself for no reason, and this thing of self-replication is almost incredible superpower when put into human science and technology.
And this superpower is hidden in the DNA of the originator of all life.
Where did they learn this trick?
Even if Tang Zheng started the intracranial storm, he is still puzzled.
The best explanation so far is to give.
The superiors gave them this ability.
Or species with higher dimensionality than the upper ones, endow them with this ability.
"What a civilization, Holy Land...Do you want to show me the original origin of life? This corridor is the birth and formation of the entire biological chain."
"Will the end of the corridor be the end of life?"
Tang Zheng has some expectations, but at the same time he is a little afraid.
The thing that mankind fears most is not a known problem, but the unknown.
Tang Zheng has fully understood the mechanism of this corridor.
Forward is evolution.
Backing up is degenerate.
The evolution of species is determined by his steps!
He urged him to start again, this time he did not choose to fly, but walked forward quickly.
Amidst the huge ocean currents, this place is like a natural breeding ground for life.
As he moved forward, these pink eukaryotic cells began to grow a thin layer of cell membrane, just like human beings put themselves on clothes.
"The birth of cell membranes is the first link in the evolution of species. It allows these extremely tiny beings to find a way to protect themselves in the fierce nature." Tang Zheng looked at it. Swept the encyclopedia, and took it back.
Go ahead! Keep evolving!
Next, the outer layer of these cells began to grow a hairy, tail-like thing.
"Flagella, evolved from the cell body. Its birth gave cells the ability to move autonomously."
Later, Tang Zheng discovered that these cells had flagella. , Began to scurry in the ocean.
But it is not without purpose.
They move in order to find more compatriots, and then gather together.
Formed a group of cells.
It's like a vine overgrown with grapes.
A completed cell population is a hundred times the size of the original cell.
At this time, look at the "flatworms" that pass by from time to time, that is, prokaryotic cells.
It's only the size of a grain of rice.
Next, is the combination of cell masses and cell masses.
Tang Zheng speeds up.
Finally, after traveling thousands of meter away, I saw the first multicellular lifeform in biological history.
Sponge animals.
When the cells have gathered to a certain extent, they begin to divide the work one after another, forming a big'family'.
As a result, sponge animals were born. Their appearance looks like coral tubes.
But compared to single-cell lifeforms, they have more evolved capabilities.
They have the ability to eat.
You can grow faster by eating.
The staple food is the prokaryotic cells in the ocean currents.
Typically I eat myself.
Moreover, sea animals also learned to use the light source on the water.
The chloroplast has evolved, and the large amount of chlorophyll contained in it is also an important ability for photosynthesis.
Tang Zheng's eyes linger in the ocean, marveling at the special nature of these creatures of origin.
The evolution of these creatures has never made any sense. They start to gather out of thin air, start eating out of thin air, and produce chloroplasts out of thin air.
As if to conform to the environment, so it will.
This is the most amazing thing.
Also in this brief moment, this until now cell family has begun to divide.
From living things, it splits into animals and plants.
The multicellular creatures that are delicious and lazy, eventually slowly evolved into ancient plants.
The hyperactive cellular organisms will move towards animals and evolve.
In the beginning, plants and animals were of the same origin, they had no spine, and even their appearance was almost similar.