1 What are seashells? 2. Where do mollusks have their skeletons?3. How do us use is4. What do people create from shells? быстро​

Это про выхухоль. Described from Vladimir region In the beginning of XX century the desman was common in the basin. PP. The Dnieper, don, Volga and Ural. The current habitat is in the aquatic systems of the rivers listed and has broken character. Thanks to the artificial resettlement, the muskrat began to meet in bass. R. Ob. In the European part of Russia in the basin. of the Dnieper river meets Iput river (Bryansk region), PP. Vyazma and Dnieper, Oster and Iput the Smolensk region. and over the floodplains of rivers. The diet, Swap the Kursk region, In the basin. Don - on the river Voronezh, Tambov and Lipetsk region., PP. Bityug, Khoper and their tributaries (Voronezh, Tambov, Saratov, Penza, Volgograd region). In the upper reaches of the Volga meets the rivers. The mouth of the Kotorosl in Yaroslavl region and Kostroma region of Snake Observed in the lower reaches of the Klyazma (Vladimir, Ivanovo region). Inhabits all the suitable grounds in the lower reaches of the Moksha river and its tributary the CNA (Ryazan, Tambov region). Common in floodplain wetlands of the lower reaches of the Oka (Vladimir, Ryazan and Nizhny Novgorod region). In the middle part of the Volga meets the river Sura (Penza, Ulyanovsk region) and the river Alatyr in the Republic of Mordovia. Down the Volga river muskrat everywhere rare [1-5]. Issue 74 muskrats in 1961 in Chelyabinsk region was the formation of a new hotbed of muskrat habitat in the West. Siberia. Released animals in the mid 60-ies. settled down the UY river in the Kurgan region. and moved to R. floodplain of the Tobol. Now, here at the junction of three regions - Chelyabinsk, Kurgan, Kustanay (Kazakhstan) formed a stable population of muskrat. Successful works were the first stage in issue 236 muskrats in 1956 in the floodplain R. Tagan Tomsk region 114 and muskrats in 1978 in the floodplain of R. Tortas Novosibirsk region due to high floods and anthropogenic impacts at present the animal in these areas are very rare.