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Biological Oxygen Demand - Effect on Water Bodies
Addition of biodegradable matter exerts demand on oxygen of the water body. The demand of oxygen is directly related to increasing loads of organic matter and is expressed as biological oxygen demand (BOD).
It is the measure of dissolved oxygen required by aerobic decomposers to break down organic matter present in a given volume of water over 5-day incubation period at 20°C. It is expressed in parts per million or mg of oxygen per litre. A high value of BOD indicates the high activity of aerobic decomposers which in turn means more organic wastes or sewage in water.
Four major groups of lipoproteins help in transport of lipids. These include: 1. Chylonzicrons-function is to carry dietary triacylglycerols 2. Very low density lipoprot
Q. What are the main respective constituents of cell walls in bacteria, protists, fungi and plants? In bacteria the cell wall is made of peptidoglycans, amongst protists algae
Illustrate briefly about titanium It is generally accepted that pure titanium has little cytotoxicity and it is suggested that the plaque induced inflammation may be due to cr
What is normal bone physiology An insight into the normal bone physiology and its adaptation by modeling and remodelling process to functional stresses is also of importance. I
What benefits can commensalism offer to a species? Commensalism may include obtainment of food (for instance, the innocuous bacteria of the human gut), shelter or support (epip
Adult Botulism The symptoms of botulism may develop between 12 and 72 hours after the ingestion of toxin containing foods. Symptoms include nausea, vomiting, fatigue, dizzine
describe and compare reproduction in all the kingdoms except kingdom animalia
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Describe the mechanisms and genetic regulations that underpin how two cells such as cardiomyocyte and a motor neuron have identical gnomes, yet are functionally and structurally di
What are plant root hairs? Where can they found and what is their function? The Root hairs that are external elongated projections of the root epidermis and their role is to in
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