The answer is C because it is takeing away part of its habitat which would make it's carrying capacity lower which means they cannot have as big of a population.
Chirping, if that's what you mean.
The protein would become denatured, losing its shape, and would not be able to function properly
The water temperature is the independent variable, and the number of fully cooked eggs is the dependent variable. The number of fully cooked eggs relies on the temperature therefore making it dependent.