What are jellyfish afraid of?

Turtles are natural enemies of jellyfish. There is a special substance in the gastric juice of sea turtles that can dissolve the venom of jellyfish, and their tentacles can be easily torn off with the mouth, making it a "delicious meal" for sea turtles. But the jellyfish also has its own way of avoiding it, because its tentacles are very sensitive to changes in water flow. The 100 tentacles can respond quickly to changes in water flow in any direction. If a strange object approaches, it will do so automatically. remove all the things in his body. The gas is released and sinks to the bottom of the mer. After the water surface calms down, it can automatically inflate and float. It is precisely by relying on this “sink and float” technique that jellyfish escaped disaster for 1.5 billion years and survive to this day.

Question 5: What are jellyfish afraid of? Thank you God, help me. I'm afraid of running out of water!

Question 6: Does the box jellyfish have natural enemies? What does it feel like to be stung by a jellyfish? It is said that it can cause numbness and pain in an animal? electric shock, burning pain, intense tingling and pain from a jellyfish sting.

Question 7: What will happen if you are stung by a box jellyfish? like the Australian square jellyfish, it is the fastest deadly animal in the world. Its venom can destroy people's blood cells and cause all human blood cells to die, causingcausing local necrosis of the skin. flow into the internal organs along the blood, causing necrosis of the internal organs, and finally the heart will stop beating. Generally speaking, it doesn't release too much venom for humans, so getting bitten will be life-threatening. However, anti-venom should be used as soon as possible to save your life, but it will leave permanent scars.

Question 8: Does anyone know that there is an animal that looks like a jellyfish but is not one? It can reduce a lot of CO2 every year. What is it probably? called ? Is this something Shar is afraid of? Does anyone know about cnidarians Phylum (Cnidaria) Scyphozoa (Scyphozoa) Sea? Produces invertebrate zooplankton, approximately 200 species are known. Or refers to species of the class Cubozoa, which was previously considered an order of the class Cubozoa. The term jellyfish refers to the sbroadly to jellyfish-shaped (bell or saucer-shaped) cnidarians, such as polyps, siphonophores (including man-of-wars), ctenophores and sea jellyfish which do not belong to the class of jellyfish. Jellyfish in this class are divided into two types: free-swimming jellyfish and those that lead sedentary lives (using their stems to perch on algae and other objects). Polyp-like species that live sedentary lives make up the order Stauromedusae.

The jellyfish (English: Jellyfish) is a lower coelenterate and a carnivore. In taxonomy, it belongs to the phylum Coelenterata and the class of jellyfish. The body of a jellyfish is shaped like a transparent umbrella. The diameter of the umbrella body can be large or small. The diameter of the umbrella body of a large jellyfish can reach 2 meters. Some baleen-like bands grow from the edge of the par's bodyrained. These bands are called tentacles. Some tentacles can be 20 to 30 meters long, which is equivalent to the length of a large whale. Jellyfish floating in the water extend their long tentacles and some jellyfish have varied patterns on their umbrellas. In the blue ocean, these jellyfish swimming in different colors are very beautiful. Jellyfish predate the dinosaurs, dating back 650 million years. There are many types of jellyfish. There are approximately 250 species worldwide, ranging in diameter from 10 cm to 100 cm. They are commonly found in oceans around the world. There are about 8 common species in China, namely moon jellyfish, white jellyfish, jellyfish, crown mouth jellyfish, etc. People often classify them according to the difference in their umbrella-shaped bodies: some umbrella-shaped bodies glow silver and are called silver jellyfish; some umbrella-shaped bodies resemblehurt to monks' hats, which are called man-of-war jellyfish; the umbrella-shaped bodies resemble jellyfish. The white sails of the boat are called sail jellyfish; some are like umbrellas, called umbrella jellyfish; some umbrella-shaped bodies glow with the light of colorful clouds, called pink jellyfish... their lifespan is only a few weeks, and some live up to about a year. Some deep-sea jellyfish can live longer. The umbrella body of ordinary jellyfish is not very large, only 20 to 30 centimeters long, but the diameter of the giant umbrella of the largest jellyfish can reach 2 meters, and the drooping tentacles are 20 to 30 meters long. In 1865, a pink jellyfish washed up on the coast of Massachusetts, United States. Its umbrella measured 2.28 meters in diameter and its tentacles were 36 meters long. By separating the tentacles of this meduse, it measures 74 meters long from the tip of one tentacle to the tip of the other. We can therefore say that the pink jellyfish is the longest animal in the world. There are approximately 250 species of jellyfish worldwide, measuring between 10cm and 100cm in diameter, and they are commonly found in oceans around the world.

[Chrysaora]

Chrysaora

Chrysaora species are free swimming, found in all oceans, including common animals dish-shaped that drift along the coasts. Most only live a few weeks and some live about a year. The diameter is usually 2 to 40 cm (1 to 16 cm), but some species are quite large, with diameters up to 2 meters (6.6). 99% of the body's composition is water, as almost all species are composed of gelatin. They feed mainly on small animals with their tentacles contained in the cnidia. Some species filter and feedsmell of microscopic animals and plants present in the water. Like all cnidarians, the body is composed of two germ layers, inner and outer, with a mesoglea (a layer of pedunculated tissue composed of a gel-like material) between the two layers. The mesoglea of ​​jellyfish is thicker than that of other cnidarians, has a floating effect and is transparent.

The life history of a real free-swimming jellyfish can be divided into three stages. Sessile polyps can reproduce asexually, dividing transversely from the upper end downward into larvae, then dividing into disc-shaped bodies, each disc-shaped body develops into an adult. There are male and female adults, but some species change sex often. The embryonic bodies formed after the union of sperm and eggs of many species hatch into floating larvae in the digestive tract of adults, but someines develop in seawater. After leaving the parent body, the floating larvae settle and, after a short period of the so-called polytubular larva stage, they transform into a new larva with a bowl mouth. This type of life cycle is unique to Semaeostomeae. There are about 50 species of this order, mainly in the coastal zone, and some of them are widely distributed. Like the moon jellyfish (Aurelia), the golden jellyfish (Chrysaora) and the large red jellyfish (Tiburonia granrojo, belonging to the subfamily Tiburoniinae), the latter is one of the three species of jellyfish without tentacles.

There are approximately 30 species of Coronatae, mainly distributed in the deep sea,...>>

Question 9: What do jellyfish come in with? they in conflict? In terms of animal classification, jellyfish belong to the jellyfish family and are coelenterates, which are multicellular invertebrates ofe very low level. The jellyfish's "hat," which professionals call the "umbrella," has many whiskers hanging underneath, and stinging cells grow on these long whiskers. There are poisonous thorns in the stinging cells, which are the "poisonous arrows" of Hai Ding. When encountering external threats, the jellyfish immediately releases stinging cells, and the "poisonous arrow" will only be fired for one ten thousandth of a second. In addition, the toxicity of the "poison arrow" is so terrible that even if the jellyfish is dead, its venom will remain in the sea for 24 hours.

Once you are stung, you should not scratch the stung area, otherwise the poison will spread. Rubbing the injured area with clean water or damp sand will not work. The correct method is to scrub with salt water, alcohol, salt and olive oil as soon as possible or apply sanddry on the injured area, or wipe it vigorously with a dry cloth, then use vinegar or salt water. it is better to apply anti-inflammatory drugs.

Turtles and tuna are the natural enemies of jellyfish, which you call common enemies.

Question 10: What is the color of sociology? 5 points: these are things in all aspects of life, with a broader concept

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point, an economy that spans the entire world.

Color: human and full of life.

Sociological color: private technology to get rich.

Jellyfish will turn into water after death.

Most of a jellyfish's body is made up of water. After death, other substances that make up the body will be broken down by aquatic organisms or dissolved in water, so after death it looks like water.'water. .

Related information:

The main component of the jellyfish body is water, and it is composed of two germ layers, the inner germ layers and external. There is a thick mesocolloid between the two layers. The layer is not only transparent, but also has a floating effect. When they move, they use the reflection of water splashes on their bodies to move forward. From a distance, they look like round umbrellas floating quickly in the water. Some jellyfish have umbrellas with various patterns. In the blue ocean, these swimmers. moving jellyfish of different colors look very beautiful.

They are found in tropical waters, temperate waters, shallow waters, oceans a hundred meters deep, and even freshwater areas. Jellyfish existed 650 million years ago and even predate the dinosaurs. There are more than 250 species of jellyfish inwaters around the world and they are distributed in waters around the world. They all live in the ocean.