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Upstairs was not carried out against the problem.
The life of a mosquito goes through four stages: egg, larva (孑孓), pupal (pupa) and adult (flying mosquito).
The eggs of the mosquitoes will be lined up one by one and float on the surface of the water. After a period of time, most of the eggs will evolve into larvae. The larvae live in the water and breathe through the tail tube, and the larvae molt a total of four times before and after, and after each molt, the area of ** will expand to four times the original size.
With the completion of the last molt, the larvae also become pupa. After a period of time, the back of the pupal shell cracks, and an adult mosquito emerges from the pupal shell and flies out of the water. Adult mosquitoes are about 16 mm long, and some individuals can live for up to a month (several months for overwintering adults), while others can only live for four days.
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Mosquitoes are one of the four pests. Its average lifespan is not long, 3-100 days for females and 10-20 days for males.
Mosquitoes are male and female, and the antennae of male mosquitoes are filamentous, and the antennal hairs are generally thicker than those of female mosquitoes. Their diet is all nectar and plant juice. The mouthparts of male mosquitoes are degraded, and female mosquitoes need to bite animals to suck blood to promote the maturation of internal eggs before breeding.
MosquitoesMosquitoes have a vasodilating and anticoagulant substance in their saliva, which makes it easier for blood to flow to the bite site. After being bitten by a mosquito, the bitten person** often has symptoms of wrapping and itching. Almost everyone has the unpleasant feeling of being "bitten" by mosquitoes, in fact, it should be said that they are "stung" by mosquitoes.
Mosquitoes can't open their mouths, so they won't bite on the **, it actually uses 6 needle-like structures to pierce people**, these short needles are the center of the mosquito's edible mouthparts. These short needles suck human blood in the same way that they draw blood; The mosquito also releases saliva containing anticoagulants to prevent blood from clotting, so that it can eat peacefully. When the mosquitoes are full of food and drink and float away, all they leave behind is an itchy lump.
However, the itchy sensation is not caused by a short needle pricking or chemicals in the saliva. We feel itchy because the body's immune system releases a protein called histamine to fight foreign substances, and this immune response triggers an allergic reaction at the bite site. Histamine causes swelling of the tissues around the bite when blood flows to the bite site to speed up tissue recovery, and the intensity of this allergic reaction varies from person to person, with some people having a more severe allergic reaction to a mosquito bite.
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The life of a mosquito is divided into four stages: egg, larva, pupa, adult. In the adult stage, it is our common mosquito form.
Mosquito eggsThe eggs are produced by the mating and breeding of adult mosquitoes, some mosquitoes lay eggs on the water surface, some are in the water, some are on the shore, these mosquito eggs will hatch after a few days in a suitable environment, and then form mosquito larvae, and the hatching time of mosquito eggs is about two days.
Mosquito larvae。Mosquito larvae live in the water, the scientific name is called "孑孓", mosquito larvae mainly breathe through the straw on the body, and live on organic matter and microorganisms in the water, so there are many mosquito larvae in the waters with more pollution and microorganisms, and the mosquito larval stage needs to grow for about 10-14 days, and then enter the next stage.
Pupae of mosquitoes。It takes about 4 days for a pupa to form, and after the pupa is formed, it will retake food again, at which point it can swim in the water, and the pupa relies on a pair of breathing horns to breathe, a process that lasts about two days.
Adult stage。After the mosquito matures, it is divided into female mosquitoes and male mosquitoes, male mosquitoes mainly live by drinking dew, nectar, etc., while female mosquitoes need to prepare for reproduction, and the protein that produces egg cells relies on the blood of mammals, so only female mosquitoes will bite and suck blood. After the adult mosquito produces egg cells, it is paired with the male mosquito to lay eggs and begin to reproduce to the next generation.
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It's hard to tell early. Male mosquitoes generally last for more than ten days, and they usually only have a week to live after mating with Lu Liming. Females are about two months old, but this is the time when hot weather disturbs or when females suck blood to lay eggs.
When it's cold, female mosquitoes may hide in a warm corner for the winter, which is at least three or four months of life.
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Dormant mosquitoes can live for 3-4 months even if they do not suck blood. In general, female mosquitoes can live for 2-3 weeks. After the male mosquito completes the sacred task of passing on the lineage, in order to avoid ruining the food, he will go to the road of death, and his lifespan will be about a week or so.
1. Usually mosquitoes suck blood at one time. Then digested. And the blood is getting into the mosquito's digestive tube.
It will be quickly absorbed. Besides. The salivary glands of mosquitoes secrete substances that prevent blood from clotting.
2. Mosquitoes will suck blood for 4 to 5 days in order to lay eggs. So he will definitely suck another one after digesting it.
He digests quickly).
3. Mosquitoes suck blood at a time, about 2 5 mg.
If you take housemosquitoes as an example (the average lifespan of housemosquitoes is about one week).
Suck blood every thirty minutes. 24 hours a day. He lived for 7 days. Suck 5 milligrams of blood at a time.
That mosquito can suck 1,680 milligrams of blood in its lifetime.
4. Blood mosquitoes of different blood types will not cause some effects when they suck blood
For example, after a mosquito inhales the blood of a person with blood type A
Re-inhalation of blood from a person with type B does not cause blood clotting because mosquitoes usually suck blood in one sitting
After a mosquito inhales the blood of a person with type A
Generally speaking, they do not immediately re-suck the blood of a person with type B
5. Mosquitoes suck blood and suck it up and don't want to suck blood
Once the female mosquito sucks blood
Blood will be stored in the digestive tubes and intestines
Then gradually digest and absorb
After the ovaries absorb nutrients from the blood
The eggs gradually mature
Spawn after 4-5 days of blood sucking
6. Because the amount of blood sucked by female mosquitoes in their lifetime is about two milligrams to five milligrams
It is also twice its body weight
The vast majority of it is water and salt.
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