Why is mosquito blood transparent?

Mosquitoes have blood, but it is an open-tube circulation, which means that it has no blood vessel walls, and the blood flows in the sinusoids, that is, the voids in the body cavities. Moreover, mosquitoes do not have red blood cells in their blood, and the oxygen they need is supplied by another system, the trachea. The blood of mosquitoes is only responsible for carrying nutrients.

Mosquitoes suck blood, and when the blood enters the digestive tract, it is digested into small molecules that are absorbed by the intestines. Small molecule nutrients do not react with the autoimmune system. As for the question of blood type.

First of all, we need to know that our human blood type refers to the type of immune protein on the red blood cells. So mosquitoes don't matter if they have a blood type or not.

If the clear, colorless liquid in a mosquito's body is also called blood, then it has blood. Our human blood is mainly to transport the necessary nutrients for the human body, the nutrients after digestion and absorption of the food we eat are transported to all parts of the body through the blood, oxygen and water are also transported by the blood, in short, the metabolism necessary for human survival is inseparable from the blood. If the nutrients carried by the blood are removed, pure blood itself does not have much nutritional value.

The same is true of animal blood. The difference is that there are different types, different digestive organs, and a variety of foods to eat.

The blood of mammals is an essential nutrient for the reproductive period of mosquitoes.

Transparent mosquitoes are poisonous. Mosquitoes themselves are not venomous, but mosquitoes can carry viruses to spread the virus.

Anopheles anthropophilia: adults are grayish-brown, female mosquitoes have thin tentacles, two white rings wide at the end, often connected to each other; Wing anterior margins consistent dark at base; hindfoot tarsal segment with only a narrow white ring; There are no T-shaped dark spots on the ventral membrane.

Anopheles sinensis: female mosquitoes have 4 white rings on their antennae, 2 wide at the top and 2 narrow; 2 white spots on the anterior margin of the wings, large white spots at the tip; T-shaped dark spots on the ventral membrane; Hindfoot 1 4 tarsal joints with a narrow end of the white ring. It is distributed in all provinces and autonomous regions of the country except Xinjiang and Qinghai, and is an important vector of malaria and malariasis in the vast plains, especially in the rice-growing areas.

Anopheles parvum: small to medium-sized brown mosquito species. The female mosquito has three white rings on its antennae, two of which are of equal length at the end and a black ring of about the same length; There is a narrow white ring on the posterior half of the tentacles, and the black and white rings may also vary; 4 white spots on the anterior margin of the wings; The tarsal joints of each foot are uniformly dark. It is found in mountainous and hilly areas south of 32°N latitude and is the main vector of malaria in the region.

Environmental governance: change the breeding environment through environmental treatment and environmental transformation. Intermittent irrigation, eradication of weeds on the shore and fish farming should be used for the treatment of paddy farms.

For the treatment of sewage-type grass habitat, the purpose of reducing mosquito breeding grounds can be achieved by dredging sewers, sewage ditches, changing yang ditches to culverts and closing them, covering sewage wells, and filling sewage pools.

For container-type breeding sites, it is necessary to adopt measures such as environmental sanitation, filling in pits and filling holes, blocking tree holes, disposing of bamboo tubes, turning over tanks and cans, removing waste utensils, and strengthening the management of tire stacking.