Cells throughout the body share similar structures, such as the Na+/K+ pump, and the same genetic code. But, a nerve cell is very different from a muscle cell in function and appearance. Why is it important for humans to have a wide variety of specialized cells?

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the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )