Ocean as an Ecosystem: The oceans constitute nearly 70 per cent of the earth's surface. The sea has unusual stability in temperature, salinity and gaseous content. The upper portion of the oceanic region through which light penetrates is called euphotic zone. The region of the ocean below the euphotic zone (below 200 metres) is called benthal. It is also known [...]
An organism is always in the state of perfect balance with the environment. The environment literally means the surroundings. The environment refers to the things and conditions around the organisms which directly or indirectly influence the life and development of the organisms and their populations. “Ecosystem is a complex in which habitat, plants and animals are considered as one [...]
Water covers about 73 per cent of the earth's surface entirely, and it is a major constituent of the lithosphere and the atmosphere. Water is also the most abundant component of the protoplasm, and therefore it is the major requirement of all living organisms. In metabolism, water is the only source of hydrogen and one of the several sources of [...]