Theory of Spontaneous Origin and Biogenesis

Topics: Bacteria, Life, Evolution Pages: 14 (4544 words) Published: December 16, 2011

Robert. C. Gallagher once said: “Change is inevitable- except from a vending machine.” “Change” is the word the practically governs our world today. Everything is slowly and gradually changing, new technologies and opportunities boosting everywhere. But the underlying question which we all wishfully choose to ignore is “All the changes happening is for good only?” Ellen Glasgow once said: “All change is not growth, as all movement is not forward.” Such are the changes going on in the world which are definitely not for good. They are changes like floods, famines, earthquakes and many more natural disasters. Now it feels as though our Mother Earth is mocking at us and trying to teach us an important lesson as though how does it feel if we were tortured. If we were inflicted upon pain the same way we did to her. In all one thought does occur to all of us that is the world really ending? Are we going back to where it all started?

But one more question is to be asked and it is WHERE did all this start? WHERE did earth come from? HOW did the life originate? HOW did we come to life?

Some of the truth and myths of this “ORIGIN OF LIFE” Is further discussed in this project.

Theory of spontaneous origin

Charles Darwin's theory of evolution on the origin of life proposes that some four billion years ago, inanimate chemicals developed completely by chance into highly complex, living, single-celled organisms. This process of life coming from non-life is called "spontaneous generation." According to the theory, a single-celled organism eventually evolved into all the complex life forms on earth in a relentless struggle for resources. Every evolutionary theory of life’s origins is based on spontaneous generation.

The evolutionary development of life on earth is commonly depicted as an "evolutionary tree." If life did arise spontaneously and then evolve into increasingly complex life forms, then spontaneous generation represents the trunk of that evolutionary tree and the branches are the various species that evolved from these earlier forms. If the origin of life cannot be shown to be plausible by the interaction of matter, random chance, energy and time then the existence of an evolutionary tree is a dubious proposition at best. Without a trunk there can be no tree. Without spontaneous generation there can be no evolution.

First Call
The notion that life could arise from inanimate, non-living matter is not a recent idea. During the dark ages, people speculated that rats and flies arose spontaneously from garbage because they mysteriously appeared when garbage was left out. Others had noticed that when meat and broths were left exposed they became covered with maggots and microorganisms. These observations led some to believe that these life forms arose suddenly and spontaneously from non-living, inanimate matter.

Louis Pasteur entered the debate in 1862 when he published the results of his experiments on the spontaneous generation of microorganisms in broths. Using glass flasks, Pasteur showed that previously boiled broths remained uncontaminated with microorganisms unless the neck of the flask was broken. Broken flasks quickly teemed with life as the broths became cloudy. He proved that microorganisms were transported through the air to the broth and not generated from the broth itself. The work of Pasteur seemingly ended the debate on the question of the sudden, spontaneous origin of life.

By the end of the nineteenth century, the majority of scientists believed that spontaneous generation was not possible. Loyal Darwinists, however, insisted on spontaneous generation, recognizing that it was the foundation upon which evolutionary theory rests. Ernst Haeckel, one of the chief proponents of Darwinism, stated in 1876: "If we do not accept the hypothesis of spontaneous generation, then at this one point in the history of evolution we must have recourse to the miracle of a...
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