how is it that the cells in different body tissues are able to perform different functions the cells exhibit different patterns of gene expression

The correct answer is -The cells exhibit different patterns of gene expression.

Explanation:

The genome of a particular cell lies in its DNA sequence the information to show gene expressions which means that they make thousands of various proteins and RNA.

A cell generally expresses only a low ratio of its genes, and the various types of cells in organisms with a multicellular body system arise because various sets of genes are expressed.

Thus, the correct answer is -The cells exhibit different patterns of gene expression.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.