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cells in the earth


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4 replies to this topic

#1 phylix

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Posted 15 September 2004 - 08:35 AM

hey..can anyone tell me why there is so many kinds of cells in the world?

#2 charlies

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Posted 17 September 2004 - 02:11 PM

specialization, evolution

#3 preeti

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Posted 01 October 2004 - 02:00 PM

survival of the fittest in each condition

#4 Squawks

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Posted 13 October 2004 - 09:59 PM

There are many, many cells in this world because they are small enough to fit on this world. Cells are small in order to retain a small surface area to volume ratio, allowing cells sufficient area to communicate with and exchange molecules with the environment. If cells were any larger, they most likely would not be viable as they would have too little exchange occuring (between the cell and the environment).

This reason alone accounts for the fact that trillions of trillions of cells exist in this world.

#5 Flash_Bulb

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Posted 15 October 2004 - 08:48 AM

There are so many cells in the world because they are all used for specialized tasks ;)




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