Chapter 20 Air Storage and the Immune System

The journey on land is not meaningless. Although there is hardly anything worth recalling on land, it still gained some useful knowledge.

For example air.

Lin discovered very early that the air in the water would float upwards, and Lin never cared about this matter. Until now, Lin suddenly remembered, why do they go up instead of down? Can they resist gravity?

Not really, it's just that air is lighter than water, so they get squeezed out by water, so all the land at the top is air.

Now Lin's speed of the aircraft carrier is reduced by covering the carapace, and her swimming is not as flexible as before.

But... what happens when you add air?

Lin created an oval-shaped sac-like combination inside the aircraft carrier, called an air bag, filled with oxygen. This structure can make the aircraft carrier much lighter, and there should be no problem even if the whole body is covered with armor.

The air sac has two tiny tubes, one is connected to the blood vessels, which can oxygenate the blood vessels, and the other extends out of the small holes in the cortical carapace. This tube is usually closed, and it can be used when Lin floats to the surface. Control air bag expansion to inhale.

Lin also created a combination of small cells called air reservoirs, which look like small air sacs swimming outside the body. Air reservoirs rely on small tentacles around the body to swim and use hollow tentacles to absorb small cells in the water. bubble.

The gas holder also has a hard shell outside the body, and can swallow sand grains to balance the weight of the body,

After the aircraft carrier is completely covered with a hard shell, it becomes more difficult to take in oxygen. When the air receiver is full of oxygen, it can return to the aircraft carrier and release it. In addition, it can also directly inflate the air bag when Lin does not want to float to the surface.

However, the current situation is that although Lin has added an airbag, she has not added a full-body shell, because the reserves of shell matter are completely insufficient.

At the same time, Lin also added an airbag to the protector's shell, but even so, it didn't float, it was only "suspended".

In addition, Lin also covered the inner layer of the guardian's hollow tail with a large number of explosive balls and acid injectors. This originally empty position is now used to dissolve and combine various carapaces.

Then the combined chitin will be taken out by a new type of unit called the 'painter' and used to transport it to the aircraft carrier. The painter can also directly apply the chitin to various places to form carapaces.

Guardians are now more like carapace factories.

Lin is still thinking about using gas to attack, but there are no good ideas right now.

The aircraft carrier swam slowly with the escort, Lin was observing the surroundings, in this depth of water and sand, there were single cells everywhere, no matter in the gravel or elsewhere, the life here was so vibrant, and the barren The land is in stark contrast.

The number of single cells seems to be much larger than before. There was no such scene where they were everywhere in the water, so there were many creatures that were motionless in the water, waiting for the cells to float over to feed themselves.

When she thought about it, Lin found some multicellular organisms in front of her. They looked like several pipes inserted in the sand. The tentacle-like bodies protruded from the pipes to capture the single cells floating around.

It's called a 'pipe worm'.

Feeling Lin's approach, its soft tentacles instantly retracted into the tube below. Lin knocked on the tube where the tubeworm was hiding, and found that it was hard and must be made of shell matter.

The chitin content Lin extracted from the food is quite minimal. Some creatures without shells probably only contain less than 1% or even no chitin at all. If she wants to quickly make a set of armor, Lin must get the raw materials from the gravel herself. Or attacking creatures with shells, and this tube worm is an ideal target.

The next moment, Lin's hammer smashed hard on the tube worm's shell.

The tube worms are thin and not very hard, and the shell is cracked after only one hit.

Lin doesn't care whether the other party's shell is hard or not, because it can dissolve and reorganize the shell material,

Adjust the carapace to your desired hardness.

click...

The shell of the tube worm shattered under Lin's knock, revealing the soft organs inside.

Next, it is the work of the devourers. They bring the debris of the shell back to Lin, and by the way, tear the soft body of the tube worm to shreds, and recover both the nutrients and the chitin.

The structure of the tube worm is quite simple, and Lin is not even interested in research.

The broken chitin was sent directly to the guardian to dissolve and recombine, while Lin's aircraft carrier turned to attack the nearby tube worms.

About ten tube worms are needed to make a carapace that covers the entire aircraft carrier.

The tentacles of the aircraft carrier are not going to be covered, it will affect the flexibility too much.

When Lin hit the next tube worm, the tube worm did not retract, but twisted its body and spewed a large amount of cyan liquid.

These liquids are composed of countless tiny particles, and they are unmistakably revealed under Lin's special eyeballs.

……Virus?

The fluid contained a huge amount of filovirus and a small amount of the original cells of the tube worm.

Do tube worms unleash viral attacks? No, it could be that this tubeworm has a virus.

In the current environment, viruses are actually uncommon. Although they can destroy cells, the cells will also kill the virus in turn. In an environment with a large number of cells, the virus is suppressed.

Only individual multicellular organisms like this tube worm can cause a large-scale outbreak of viruses. After all, they eat whatever they float over, and it is not surprising that they eat viruses.

Lin's aircraft carrier never obtains nutrients directly. No matter what it is, it is brought back by other arms, so there is almost no possibility that the aircraft carrier will be invaded by viruses, and Lin has already thought of a good way to deal with the virus.

Lin will let the gas receivers take turns to get oxygen outside, so there will always be some gas receivers hanging around the aircraft carrier, and some viruses float in with the gas receiver's inhalation tentacles, and get into the cells in the inner layer of the tentacles. middle.

The virus penetrated into the cell, and Lin could feel it immediately, so it immediately covered the body of the cell with a rapidly hardening chitin, sealing it completely before the virus split.

Finally, the hardened cells are removed, and it is easily solved.

In addition to this, it is also a good idea to let the cells die immediately, the virus seems to only be able to multiply in living cells.

Lin expanded the vascular structure a bit and let gland cells swim in it, which allowed them to deliver chitin to the whole body at any time, allowing cells anywhere to quickly absorb and harden the chitin. This set is effective. Isolate viruses or other small organisms from invading.

Lin ignored the virus attack and easily destroyed the tube worm completely and recycled it without waste.

Next...

Lin was about to attack other tube worms when suddenly an urgent signal entered its mind, and the guards lying behind the aircraft carrier were attacked.

Lin felt that the escort was being dragged by a force far greater than itself, and when the carrier turned around, all she saw was a bunker.

Been pulled into the sand by some kind of creature?

Lin regretted not putting eyes on the guard. Now it can only accept that the guard is tightly pressed by that force, and no matter how hard she struggles, she can't get out.

It should be a multicellular creature that is similar to or stronger than the Buckler Worm, otherwise it would not be so easy to pull the guardian down.

Do you want to try digging it out?

The guardian did not continue to be dragged deeper, and should still be in a very shallow position.

Lin was a little hesitant, no matter what, the safety of the aircraft carrier was the priority.

But... it seems a pity to lose the Guardian.

In the end, Lin still approached the bunker and used the tentacles of the aircraft carrier to dig in the center. After removing part of the sand, Lin could see the body of the guardian.

The second half of the guardian's body was sandwiched by two huge disk-shaped hard shells. Under the strong pressure, Lin could feel that the guardian's body was almost broken.

Lin still remembers these kinds of creatures. There used to be many places where leafworms were infested, and their shells were very hard, but Lin had never seen them move. Could it be that they are very powerful predators?

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