Razi Brown Air pressure is measured with an instrument called a mercury barometer or the aneroid barometer. On maps, places of equal atmospheric pressure are joined together by lines called ISOBARS. Meaning of Atmospheric Pressure Atmospheric pressure is the weight of the volume of air which extends from the ground surface to the outermost …
The Kell blood group system was discovered in 1946 and was named after Mrs. Kellner, the mother of first baby discovered to be affected by Hemolytic Disease of the Newborn (HDN) due to Kell antibodies. The Kell blood group system is classified into subtypes according to the type of antigens on red …
Rarest Blood Type in the World The rarest blood type in the world using the ABO and Rh system is The RH Null blood type. Someones blood is grouped as Rh-null if the blood lacks all of the 61 possible antigens of the rhesus system. This type of blood can be considered as the Golden blood if …
Atmospheric circulation definition Atmospheric circulation is referred to as the large scale movement of air at levels of the atmosphere by which heat is circulated on the surface of the Earth; this is also referred to as the different amount of insolation absorbed by the earth which causes differential heating of the …
What is Biodiversity? Biodiversity in ecology is the geographical distribution of all species of plants, animals, insects and the microorganisms inhabiting the earth either in the aquatic or the terrestrial habitats. Biodiversity is a term that combines two words, Bio (life) and diversity (variety). However, biodiversity is defined as the number and variety of organisms found …
Transitional epithelium is also called Uroepithelium or Urothelium (because it lines the urinary system), and it is a type of stratified epithelial tissue in which the surface cells change shape from being rounded to squamous in nature. Transitional epithelium is located in the urinary system, especially the urinary bladder. When the bladder is empty, the surface …
Pseudostratified Columnar Epithelium is a type of a columnar epithelium which is actually single layered epithelium but may appear as a stratified epithelium hence the name: Pseudo- stratified epithelium (it is not a true stratified epithelium). This type of epithelium when viewed with a microscope will show the nuclei to lie in …
What is Manufacturing Industry? To manufacture means to produce by the use of machinery, especially in large quantity. Manufacturing industry simply refers to the changing or transformation of raw materials into finished products in the factory. Firms which belong to the manufacturing industry are those which are involved in the making of …