Saran's Learn Microbiology

  FRESHWATER ECOSYSTEM ·        Freshwater ecosystem refers to the water found in Lakes, Ponds, Streams and any other body of water other than the sea. ·        Freshwater has less than one gram per liter of Dissolved solids, mainly Salts of which Sodium chloride. Plants and Animals living in freshwater would not usually be able to live in Salt water, because their bodies are adapted to a low-salt content. ·        Freshwater ecosystems are vulnerable to water pollution that arises from a range of human activities. They are also used as water supplies for human use. ·        The study of Freshwater Biology is called as Limnology. ·        Fresh water is not the same as potable water (or drinking water). Much of the earth's fresh water (on the surface and groundwater) is unsuitable for drink...

  ECOSYSTEM ·        A complex relationship between all the Living and Non-living things interact with each other is known as ‘An Ecosystem’ or ‘Biome’. ·        The term Ecosystem was coined in the 1935 by the British Botanists Roy Clapham and Sir Arthur Tansley. ·        The components of an Ecosystem are divided into two components.   1)      Abiotic components (Rocks, Temperature and Humidity).  2)      Biotic components (Plants, Animals, Microorganisms and other organisms). ·        The gleaming energy from the Sun is the basic source of energy in all the Ecosystems. ·        Ecosystems are the foundation of ‘Biosphere’ and maintain the natural balance of the earth. ·        The study of Ecosystem is called Ecology. FO...

SOIL TYPES AND THEIR MICROFLORA ·        Soil types are classified according to many more factors. ·        Soils are classified on the basis of Colour, Depth, pH, Geology (Study of Earth science), Productivity, Texture and Process of formation (Weathering). Soil types according to Depth ·        Soil types according to depth are as follows: a)     Shallow soil - Soil depth less than 22.5 cm. Only shallow rooted crops are grown in such soil (e.g.) Paddy. b)     Medium deep soil - Soil depth is 22.5 to 45 cm. Crops with medium deep roots are grown in this type of soil (e.g.) Sugar cane, Banana, Blackgram and Greengram. c)      Deep soil - Soil depth is more than 45cm. Crops with long and deep roots are grown in this type a soil (e.g.) Mango and Coconut. Soil types according to Geology ·        Geolog...