Had the ocean been a few feet deeper...

Had the ocean been a few feet deeper, carbon dioxide and oxygen would have been absorbed and no vegetable life could exist."1 The atmosphere, most of whose constituent elements are lifegiving gases, is sufficiently viscous that it can, like a shield or armour, protect the earth from the deadly attack of 200 million meteors every day, which approach the earth with a speed of 50 km per second.

The responsibility for regulating the temperature of the earth's surface within limits which maintain life also belongs to the atmosphere, and if it did not exist, inhabited land, like the dry deserts, would become incapable of supporting life. "Because of these, and a host of other examples, there is not one chance in millions that life on our planet is an accident."2 But why are we taking the long way round in explaining these things? Nearer than anything else is our own body.

The mysteries of man's existence are without number, so much so that the world's scientists, after years of research and study, have not yet been able to fathom all the wonders of it. After many years of study, Dr. Alexis Carel wrote a book called L 'homme, cet inconnue (Man, the Unknown). He confessed that biology and other sciences were 1 A. C. Morrison quoted in S. Saeed Akhtar Rizvi, God of Islam, Tanzania 1969, p. 31. 2 Ibid.

still unable to discover the facts about the working of the human body, and that many problems remained to be unraveled. Now let us examine some of the marvels of our own existence. THE CELLS OF THE BODY: A human body is like a building. It is composed of small building blocks called cells, each of which is itself a living entity. In the structure of the cells most metals such as iron, copper and calcium are used as are other elements like oxygen, hydrogen, nitrogen and sulphur.

The number of cells in the body of man is about 10*6 which is equivalent to ten thousand, million, million. Each one of these living cells works in perfect cooperation with the next, and all of them follow the same aim. They are very quick to suffer, having low tolerance levels, and nourishment must be correctly supplied for their needs. The blood, with the help of the heart, performs this duty very well.

The structure of the heart is well-designed and has perfect dimensions, so that it can supply blood to the whole body through the agency of the blood vessels and the capillaries.