Diffusion movement is always (h->L/L->H)

There is a net movement of molecules from areas of high concentration to other areas. The average diffusion rate in a semi-solid like agar is around 50mm/h over the first net diffusion will always occur.

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i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

genetic variation will increase because of a new habitat and food source.

explanation: