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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.
Explain Internal Respiration What do you understand by the term 'internal respiration'? Well, the interchange of gases between the blood and cells of the body is internal respi
Which theory focuses on how people are different than animals? Functionalism Eclecticism Humanism Behaviorism
Biological Basis of Aggression: Studies show that mild electrical stimulation of a specific region of the hypothalamus - produces aggressive behaviour in animals. When a cat'
How to calculate the student t test step by step when the mean of heart rate at 1 minute is 5.0,17.2,22.9,8.3,10,76.5,70,19.7 and for breathing rate it is 22.2,28.5,20,12.5,20,92,
Explain the Functions of Mineralocorticoids Aldosterone is the name given to the main physiological mineralocorticoid. As you go through the functions listed below, you will re
Forest cover: An analysis of satellite imageries and air photos indicates that in 1982 about 1 I%of land area in India was thick forests and the remaining 3% degraded or th
Digestion in the Mouth The mouth receives food. The tongue serves in swallowing, manipulating the food for chewing and in perceiving taste. The teeth mechanically subdivide
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factors which decide the broad area of scientic activity
Formation of the solar system: This theory is based on the assvmption that the Sun and all the planets were formed from a huge rotating cloud df interstellar gas and dust.
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