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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 properties identify nonmetals
Explain the Gonadotropic Hormones (GTH): There are two gonadotropic hormones which regulate gonadal functions. They are follicle stimulating hormone (FSH) and luteinizing hormo
which is the probable principal source of nitrates and phosphate a. the water cycle b. nitrogen fixation c. bacterial decay d. change in environmental temperature e. changes in lig
Linh has been brought by ambulance to the Emergency Department of the local metropolitan hospital where you are working, following a drug overdose of thirty Paracetamol tablets whi
The developing brain is highly plastic in humans. The downside of this is that the developing human is, compared to other species, practically helpless and without any skills requi
Visible and Invisible Radiation: Light is very much a part of our existence. Without it we cannot see; It Iends colour to the world around us. Light is also termed as visible
Primary source from plants for humans and animals
Compare and contrast the characteristics of sound waves and electromagnetic
Ingestion : The standard treatment for this type of poisoning is as follows: (1) Tell the casualty to spit out as much of the material as possible and then wash the mouth thoro
Explain Vaginal Bacteria - External Defence Mechanism Vaginal bacteria: Certain bacteria normally live in the vagina. They produce lactic acid, which kills the bacteria. Hence,
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