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Ordinary osmosis cannot be used to purify water. If the applied pressure exceeds osmotic pressure then water starts moving from solution side to pure solvent side. This is reverse osmosis, by which pure water is squeezed out of impure water.
Advantage: this process removes lead, calcium, magnesium, sodium, chloride, nitrate, sulphate, etc.
Disadvantages: it requires large volume of water. It may take as much as 90 gallons of water to recover 5 gallons of usable water.
DIGESTIVE SYSTEM OF MAMMALS The tube from mouth up to anus is called alimentary canal. Alimentary canal of man is about 9 meter and rabbit is about 6 meter. Digestive
A number of protein-coding genes are active in all cells and are required for so- called house-keeping functions such as the enzymes of glycolysis, the citric acid cycle and the pr
Define Mineral Absorption? NDOs affect mainly calcium/magnesium absorption and balance. Acidification of colonic contents increases the concentration of ionized minerals, parti
How does nondisjunction in meiosis I and meiosis II look in males and females? Diagram it.
classification of excretory organs in helminthes, nermatodes, annelids, molluscs, arthropods and echinodems
Compare and contrast the effect of a deletion in the operator of the lactose operon with one in the operator of the histidine operon.
Osseointegration Vs. Biointegration In 1985, dePutter observed that there are two ways of implant anchorage or retention: mechanical and bioactive. Mechanical retention refers
what are some of the human needs??
Q. What are the differentiations of the cell membrane? In some kind of cells, the cell membrane presents differentiations that are necessary for the specific functions of the c
CELL SURFACE JUNCTIONS (1 ) Desmosomes (Maculae adherence) - Thickened circular areas on P.M. of adjacent cells with radiating fibrils in cytoplasm. These fibrils calle
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