Cells in multicellular organisms have many different sizes and shapes. these differences in cells is called cell specialization. cell specialization allows cells to

Explanation:

Cell specialization is the process that is responsible for the production of cells with different traits at different positions. This process sees cells (embryonic cells) changing from their simple form into more specialized cells both in structure and function.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.