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The advantage of snake venom is that snake venom can have anti-tumor, anticoagulant, hemostasis, analgesic and other effects after proper treatment; The disadvantage is that snake venom can cause poisoning to people, and in severe cases, it can cause life-threatening; Snake venom is a fluid secreted by venomous snakes from venom glands, and the main component is toxic proteins, accounting for about 90% to 95% of dry weight; There are about 20 kinds of enzymes and toxins, in addition, it also contains some small molecule peptides, amino acids, carbohydrates, lipids, nucleosides, biogenic amines and metal ions; The composition of snake venom is very complex, and the toxicity, pharmacology and toxicological effects of different snake venoms have their own characteristics. I hope it can help you, give it a thumbs up, and wish you a prosperous business and a wide range of financial resources.
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1. Snakes play a very important role in the natural ecological environment. Snakes are an important part of nature's ecosystem, and they balance each other through the food chain. If there is a problem at one point in the food chain, then the balance of the ecosystem will be severely disrupted.
2. Grass to locusts to frogs to snakes to eagles, indicating a complete food chain, with the increasing destruction of the earth, human uncontrolled hunting kills a large number of snakes, which directly leads to the food chain of nature is becoming more and more incomplete, and the loss of rodents and insect pests to the natural ecology is unimaginable, and the ecological environment is directly seriously damaged.
3. Snakes: In primitive tribes, snakes are used as totems, and there are many clans. Some of them also become a high-level ritual of worship to invoke the protection of the serpent spirit. Of all animal worship, the worship of snakes is the most common, and snakes once occupied a prominent place in the religious beliefs of primitive clans.
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Snake venom has high medicinal value. Pharmacological studies have proved that snake venom contains pharmacological functional components such as procoagulation, fibrinolysis, anticancer, and analgesia. It can prevent the formation of stroke, cerebral thrombosis, and also prevent the formation of vasospasm occlusion, coronary heart disease, multiple Takayasu's arteritis, acral artery spasm, retinal artery, vein occlusion and other diseases; Snake venom also has a certain effect on relieving the symptoms of advanced cancer patients, especially the analgesic effect, which has attracted the attention of the world.
The snake venom is made into a variety of antivenom serum, which is used for all kinds of poisonous snake bites, which has the effect of medicine to eliminate the disease, and has been widely promoted.
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The good thing about the poisonous snake is that we can use its toxins to make medicine, and use the method of poison to reduce the poison.
The disadvantage is that once you are targeted by it, you will lose your life if you are not careful!
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Benefits: Snakes have an important economic value, not only for medicinal and edible purposes, but also snake skin is an important raw material for Chinese folk musical instruments such as the erhu.
Disadvantages: The snake venom of poisonous snakes can cause poisoning in people, and in severe cases, it can cause life-threatening injuries.
Degree of snake venom poisoningThe severity of snake bite poisoning depends on the size and type of snake, the amount of snake venom injected, the number of wounds, the location and depth of the bite (e.g., head and body bites are more severe than limb bites), the age, weight and health of the bite, the time between the bite and the onset of the bite**, and the bite's susceptibility (reaction) to the snake venom.
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The snake is a reptile that has lived together as a human for thousands of years, only the snake is more secretive. There are too many benefits of snakes: snake venom is the most valuable and has a high medical value; Snake meat is edible; Snakes can eat crop bugs and have a good balancing effect on the ecological balance of nature.
The bad thing about a snake is that if you accidentally touch or provoke it, it can bite you and even take someone's life. In addition, human beings have always been afraid of it, for fear that one day they will encounter it or provoke it, which will interfere with their lives.
Since I can only pass a **, I only inserted the aircraft of the First World War, this kind of aircraft is generally a biplane (as shown in the picture) or monoplane-based, the fuselage is generally made of wood, the weight of the fuselage is large, at the same time, the cockpit is exposed so that the aircraft does not fly high, flying not fast, the aircraft of World War II are generally made of metal, not alloy, although the strength is stronger than the aircraft of the First World War, but the weight is heavier, and all the air actions of the aircraft of the Second World War are due to the absence of a hydraulic power system, or a hydraulic servo system, After World War II, civil aviation began to develop vigorously, and the flight speed has also been significantly improved, and the aircraft can change the aspect ratio to change the flight speed (aspect ratio: the area of the large wing of the aircraft is the ratio of the connection line of the wingspan of the large wing and the two wingtips of the large wing) The greater the aspect ratio, the greater the flight speed, you can compare the Concorde aircraft, his aspect ratio is very large, he is a supersonic passenger aircraft. At the same time, modern civil aircraft are generally transmitted by wire, hydraulic transmission, steel cable transmission mode to drive the pilot's control signal, greatly reducing the physical load of the pilot, and the modern aircraft is very intelligent, humanized, basically all the problems in the sky can be solved for the pilot, even if the pilot falls asleep in the air cruising stage, it doesn't matter. >>>More
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