Life on earth
Illustrate that when did the life appear over earth?
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It is estimated that the life over earth is emerged around 3.5 billion years ago, therefore 1 billion years after the formation of the planet.
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Give a brief description of the term dengue?
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Describe the structures which participate in the human auditory sensitivity?
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Illustrate the major constituent of the cell wall of bacteria? Answer: The bacterial cell wall is made up of peptidoglycans.
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