jueves, 19 de marzo de 2009

DIFFUSION


DIFFUSION:a type of passive transport, therefore, it is a net movement of molecules in and out of the cell across the cell membrane along a concentration gradient.

3 comentarios:

  1. Este comentario ha sido eliminado por el autor.

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  2. nikolas.G
    It is the disability repeated of an erection manages or to support the sufficiently firm thing as(like) to have a sexual satisfactory sastyfations

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  3. hello teacher a perfect comentari an diffusion

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