How did the ice age affect the landscape of snowdonia? explain whether this process happened over short or a long period of time

It took over a long period of time to form the ice age. During the last Ice age, a thick sheet of the ice covered the landscape of Snowdonia.

The ice sheets shifted downwards and the rock from the back of the valley deposited the material again because the glaciers melted.

The main influence has been the climate and human actions in Snowdonia. The ice age formed around 450 million years ago over the Ordovician period.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

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