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How the lungs work
Cut the bottom off a large bottle. Fit a cork to the neck with a Y tube in it. On every of the lower limbs of the Y tie a rubber balloon or a number of small bladder.
Tie a sheet of brown paper or sheet rubber round the bottom of the jar, with a piece of String knotted by a hole and sealed with wax. Pulling this string lowers the diaphragm and air enters the neck of the Y piece causing the balloons to dilate.
Pressing the diaphragm upwards has the opposite effect.
Definition of a rock and the difference between a rock and a mineral ? A rock is a mixture of one or more minerals. There are many kinds of rocks, and we will learn about them
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Making a simple reflecting telescope A simple reflecting telescope can be made from a concave mirror obtained from a shaving mirror. The mirror is arranged wooden box of suitabl
Excretory Function of Bile Excretory function: Bile pigments (bilirubin and biliverdin) are the waste products of the breakdown of red blood cells and bile is their route of ex
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Endoenzyme An enzyme which is not secreted or exported out of the cell, but is kept and used by the cell which made it.
PROCEDURE A. For Gas Supply Visit the LPG gas store room 1 cracking plant along with your counsellor or the lab in charge' and note the way supply of gas is regulated. It
Q. List the main steps involved in the preparation of oil from oilseeds? The main steps involved in the preparation of oil from oilseeds are: preparation of the raw material,
Define Proteins - Abnormal Constituents of Urine Proteins: Abnormal amounts of proteins are excreted in certain inflammatory diseases like glomerulonephritis (inflammation of t
basic steps in callus culture
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