Question

1. what is the independent variable in the experiment depicted by the graph?

the effect of temperature on enzyme activity
graph with x - axis: temperature (°c), y - axis: enzyme activity (%)
options:
○ enzyme activity
○ temperature
○ a and b
○ none of the above

Explanation:

In an experiment, the independent variable is the one that is manipulated or changed to observe its effect on another variable (dependent variable). The graph's title is "The effect of temperature on enzyme activity", meaning temperature is the variable being changed to see its effect on enzyme activity (dependent variable). So temperature is the independent variable.

Answer:

B. Temperature