The adaptation of organisms to the environment is strong and weak, and it also affects the distribution of organisms. Species that are geographically widely distributed are called widespread or cosmopolitan species because of their strong adaptability and the environment in which they live. Contrary to the world, it is a local species. The narrow adaptability to the poor adaptability to the environment is narrowly distributed. The ability to adapt is strong, and it is said to be widely adaptable and widely distributed. Originally distributed widely, and later distributed geographically smaller, called the residual species area.
Due to geographical or ecological isolation, the biosphere can be divided into several natural zones. Such as non-sea habitats and marine habitats. Non-sea habitats can be divided into freshwater habitats and terrestrial habitats, each of which has multiple divisions. Marine habitats can be divided into floating areas and benthic areas, and can also be divided according to water depth, the range of light transmissive layers or other natural geographical standards. For example, the coastal area is mainly located in the intertidal zone; the shallow sea area is located in the shallow sea shelf area of ​​the subtidal zone; the semi-deep sea area is located roughly on the continental slope; the deep sea area is the part of the deep sea basin; the sea ditch area is located in the deep sea trench area. Although marine habitats are located in the scope of seawater, due to the different physical and chemical properties of seawater in various regions, the ecological differentiation of organisms due to adaptation is also obvious. In addition to different depths in seawater, there are also differences in water temperature, and there are warm water and cold water circles. The boundary between the two water circles is called the temperature layer. It is generally believed that the cold water ring below the temperature layer is not only low in sea water but also lacks oxygen, so it is different from deep water and shallow water. Shallow-water benthic fauna in high latitudes sometimes shows characteristics of low-latitude deep-sea fauna, making the differences between depth-related biotas less obvious. This is similar to the vegetation at high latitudes and the vegetation at high latitudes. There are many factors affecting the distribution of species, but mainly the internal factors of the organism itself and the external factors of the environment. Internal factors refer to bio-adaptation ability, larval activity, length of life cycle, and survival competition between organisms (including predation). External factors such as the distance between mountains, oceans, continental margins, climate differences, and physical and chemical characteristics of seawater.
1 Nitric acid: a colorless transparent liquid, with strong oxidation and corrosion, often used in the manufacture of fertilizer, explosives, dyes and so on.
2. Sodium hydroxide: A white solid commonly used to make soap, paper, glass, etc., as well as for cleaning and removing stains.
3. Sodium carbonate: A white powder, often used in the manufacture of glass, detergent, fertilizer, etc., can also be used to regulate the pH of water.
4. Sodium chloride: a white crystal, is a common table salt, can also be used in the manufacture of chemicals, medicine, etc.
5. Sulfuric acid: a colorless and transparent liquid, with strong corrosion and oxidation, often used in the manufacture of fertilizer, batteries, dyes, etc.
6. Aluminum hydroxide: A white powder commonly used in ceramics, glass, building materials, water treatment and chemicals.
7. Ammonium nitrate: A white crystal commonly used in the manufacture of fertilizers, explosives, dyes, etc.
8. Phosphoric acid: A clear, colorless liquid commonly used in the manufacture of fertilizers, Food Additives, detergents, etc.
9. Calcium hydroxide: A white powder commonly used to make cement, building materials, food Additives and more.
10. Hydrogen sulfide: A colorless gas with a strong rotten egg smell, often used in the manufacture of chemicals, medicine, etc.
Wuxi Volksky New Materials Co.,Ltd. , https://www.volkskychem.com