As a result of its involvement in a reaction, an enzyme as a result of its involvement in a reaction, an enzyme loses energy permanently alters its shape. is unchanged is used up loses a phosphate group

is unchanged

Explanation:

Enzymes are the biological catalysts that serve to speed up the chemical reactions that occur inside the body of living beings. Enzymes are protein in nature and accelerate the rate of the chemical reaction by lowering down the activation energy required for formation of transition state.

Once an enzyme catalyzes one reaction, it is released and catalyzes the next round of chemical reactions. Enzymes are never used up during the reactions.  

For example, once hexokinase enzyme catalyzes phosphorylation of one glucose molecule, it becomes available to catalyze the next round of the same reaction. Hexokinase is not changed or consumed during the reaction .

americans began to notice growing differences between the northern and southern sections of the country. there were more people living in cities in the north, which made it more urban. more people lived on farms in the south, which made it more rural. while many people were farmers in the northern states, there were now other ways to make a living, such as working in mechanical cotton gins factories manufacturing cloth, tools and other goods. people in the north supported high tariffs on goods imported from europe because the extra cost encouraged people to “buy american” instead. in the southern states, planters did not like tariffs because they sold most of their production to europe and bought their tools from there as well. southerners believed the protective tariff was something that only northern factory owners keep their profits high. so the southern politicians came up with an idea. they would opt out. they would simply ignore the protective tariff. it was ‘null and void’ in south carolina. the state would not collect the taxes on goods imported into south carolina, no matter what the president said they had to do. this decision led to the nullification crisis.

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

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