The main species of crane bird that dances to the sea

After decades of investigation and research by marine science and technology workers, 20,278 species of marine organisms have been recorded in the waters under the jurisdiction of China. These sea creatures belong to 5 kingdoms and 44 phyla. Among them, the animal kingdom has the largest number of species (12,794 species) and the prokaryotic kingdom has the least (229 species).

China's marine species account for about 10% of the total number of marine species in the world. According to the distribution of marine organisms in China's waters, they can be roughly divided into two categories: marine organisms in waters and marine organisms in tidal flats. Among the marine life in the water, fish, cephalopods (such as the cuttlefish, also called cuttlefish) and shrimp and crabs are the most important marine organisms.

Among them, fish have the largest variety and quantity, and constitute the main body of marine life in the waters. The distribution trend of marine species in the waters is more in the south and less in the north, that is, there are more species in the South China Sea, while there are fewer species in the Yellow Sea and Bohai Sea.

According to the latest survey data, there are more than 1,580 species of marine organisms distributed in China's tidal flats. Among them:

Molluscs (what we usually call shellfish) have the most species, with 513 species, followed by seaweeds with 358 species, and crustaceans.

There are 308 species of shrimp and crabs, and there are very few other taxa. Biology of our country along the tidal flats.

The number of species, like that of marine organisms, gradually increases from north to south.

Plankton Polyps, scallops, jellyfish, shrimp crabs, fish.

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The terrain of the second-level ladder distribution in China mainly includes plateaus and basins, mainly including the Inner Mongolia Plateau, the Loess Plateau and the Yunnan-Guizhou Plateau. Junggar Basin, Tarim Basin and Sichuan Basin. 1000 2000 meters from the state of Hai Jie Pai.

First Tier. Main terrain type: Plateau.

Main topographic area: Qinghai-Tibet Plateau, located in the Kunlun Mountains, the south of the Qilian Mountains, the Hengduan Mountains to the west of the Himalayas.

Average altitude: 4,000 meters or more.

Hope, thank you.

Plateau: Tibetan Plateau 4000 meters. Hope. Thank you.

Only 37 points....(Adds up to ten)....It is to take the middle division head (55 points) as the standard model, and divide obliquely in turn, and the oblique is 28 points....