When allosteric effector x binds to enzyme #1, the enzyme stops working. nevertheless, the speed of the reaction can be altered by adjusting the concentration of x. how?

when concentration of a reactant particles is increased it means that the number of reactant particles in a specific volume is increasedthis will mean that the number of collisions between particles to form molecule products will also increase so reaction will proceed fasteras more molecules will be formed quickly due to increased collisions

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weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project