PLEASE HELP ITS FOR 11:00 Kelly is walking on the beach when she finds an interesting rock. She picks it up, examines it, and wonders what type of rock it is and how the rock was formed.

What type of rock did Kelly find and how you can tell? Describe how this type of rock is formed.

B. Enzymes have particular pH's at which they function best

Explanation:

The table in this question describes the reaction rate of two enzymes (enzyme 1 and 2) measured in mmol/min. According to the question, Greg performed an experiment in which he measured the reaction rate of two different enzymes at varying pH.

At pH 7-9, the reaction rate of enzyme 1 was more than that of enzyme 2 while from pH 9.5-11, the reverse was the case. This portrays that the reactivity of an enzyme is in response to the pH they are placed in. In other words, different enzymes have particular pH's at which they function best.