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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 extinction? When did it happen? What are some human activities that lead into extinction
Explain Bile pigments - Constituents of Bile The red blood cells are broken down when they are old (life span of red blood cell is 120 days). They are taken up by the reticuloe
describe the factors which decide the brad area of scientific activity
Let us summarise the important points that we have understood about the radiation and chemical hazards in this unit. The radiations, causing severe hazards like cancers, mutations,
Eicosanoids : Local hormone formed by body tissues during self-healing responses to stimuli.
is there any human out of galaxy? Have any astronauts went out of galaxy?
Explain the acid/base balance of our blood changes This acid/base balance of our blood changes in response to many things. These include: Diet: the diets that are rich in
What is a covalent crystal? A covalent crystal is one in which the lattice structure is held together by powerful covalent bonds. These crystals tend not to be soluble in water
Explain Sympathetic - Nerves System Sympathetic, as the word suggests, means to sympathize. The body sympathizes during fight, flight and fright reaction. For example, have you
Aquestion #Minimum 100 words accepted#
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