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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.
What is the meaning of Manures The way fertilizers affect soil productivity, organic matters in soil are also associated with soil fertility. This is because a soil rich in or
WHAT IS THE OCEAN''S COASTLINE''S LIVING AND NON-LIVING THINGS?
How did it change from Mendeleev to Mosely?
How to identify errors in an experiment (like a word problem)
Purpose To develop beginning skills in planning care for clients using the nursing process. General Instructions 1. This assignment should be presented type written, 8
Active Factors or Active Soil Formers It has been recognized for many years that climate is one of the major state factors controlling soil formation. Soil climate regi
This study will examine surface roughness encountered in CNC milling and it will consider the factors that affect the surface roughness of aluminum and mild steel and the means by
Illustrating an eclipse of the sun Hold a small coin a few inches from one eye and close the other eye while looking at the lighted electric bulb on the ceiling of a room. The
What is happening to the length of a day on the Earth, as a result of the gravitational pull of the Moon?
Define the Amount of Calcium in Urine Normally I00 to 300 mg of calcium is excreted in the urine daily. Urine calcium is low in intestinal malabsorption and rickets - a childho
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