Do flies have blood? What does it mean for flies to see blood

The blood of flies is indeed red, and this has something to do with the cells in the blood. Humans and mammals have red blood because of the heme in red blood cells. The blood of houseflies also contains a large amount of heme, so it is red.

However, the circulatory system of insects, including flies, does not have the function of transporting oxygen, and oxygen is directly transported into various tissues and organs by the tracheal system, because there is no need to transport oxygen, so there is no need for different kinds of insects to choose hemoglobin with high transport efficiency, so the color of blood is different.

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.

Flies, there must be them, but they are those green liquids (it seems that the flies that are swatted to death are not the same for different species...).

It's nonsense, yes.

Question 1: Do flies have blood? Of course there's blood, don't believe you try one next time you hit one with a fly swatter.

Question 2: Do flies drink blood? Flies are interested in anything ......His mouth is a suction cup and a straw

Oh Question three: Do flies also suck blood? Why do my killed flies have blood on them? Generally, the flies we see do not suck blood!

But there are blood-sucking flies abroad, and the inner species of flies are deadly! If you want to take a bite of it, it will sprinkle fly eggs on your wounds, and then it will be conceived in your body, and when it matures, you will die! They will crawl out of your mouth, nose, eyes, and even ears!

Quite disgusting!!

So don't worry, the fly front rock we see now doesn't suck blood! But they're creatures themselves, so they'll have blood, too!

Question 4: Why is there blood after killing flies You are talking about the brain fluid of insects, sorry I don't know the technical term for that, some of it is blood red.

Question 5: What color is the blood of flies? Red, only a small amount, more is mixed with a clear liquid. The fluid in the body of the fly can only be collectively referred to as body fluids, which is very miscellaneous and very small, and the unknown large animals use blood as the basis for internal circulation.

Question 6: Flies suck human blood? How can some flies have blood in their bodies after they are killed and do not nail and regret to make blood, and its nutrition is transmitted through bodily fluids.

The red ones are not the blood of flies, but the pigment in the red compound eyes of flies. Insects are covered with tiny trachea inside their bodies and do not need blood to transport oxygen, so the blood of insects is not red.

Question 7: Do flies have blood? There must be, the one you stepped on didn't bleed, it must have been a blood vessel that didn't hit it.

The word "seeing blood" means that as soon as the fly sees blood, it sucks desperately. The metaphor is that man is extremely greedy.

1. Source

Ming Feng Menglong's "Ancient and Modern ** Zhang Shunmei Lantern Night Girl": "The two of them are empty men and women, seeing each other like hungry tigers and sheep, and flies seeing blood. ”

2. Synonyms

1. Insatiable: greed, when there is no satisfaction.

2. Lack of greed: greed is extremely heavy, and there is no time to be tired.

3. Get the liquid to cover the inch into the foot: get an inch and want to enter a foot. The metaphor is insatiable.

4. Profit-seeking: only greedy for financial gain, and nothing else. It is also known as "profit is for the sake of profit".

5. Greedy and untrustworthy: greedy and untrustworthy.

Fly sees blood spring closed sentence:

1. The development of this kind of fly can only lead to ecological imbalance.

2. He is not suitable to be a person who sees blood and disconnects himself from his own country and planet.

3. The other form is reciprocal altruistic behavior, or "embarrassment, flies see blood".

4. Let the wormhole close, then dial one of the allies, and sell the labor to the blood.

5. The leader of a dwarf company who sees blood is looking for a good horse and **** source.

6. Vulnerable children are swept away by flies who don't care about their children's welfare.

7. Don't deal with him, he's a fly who will try to take every penny from you.

8. People are inevitably not selfish, but if they are too selfish, they will see blood, and then they will forget their righteousness, betray their backs, and even lose their humanity.

9. The enterprise itself is a fly that sees blood, and it doesn't matter if it is for the benefit of the enterprise itself and the public and private are not separated.

10. It is the nature of the landlords and bourgeoisie to harm others and benefit themselves, and to see blood from flies.