Answer from cs61c-eq (Nicholas Hwang 16732453) for Question 2
I'm not sure I understand exactly what "procedure call steps" mean. All I can think of are the calls to jal and jr which are specific to procedures, but those seem necessary for programs to continue from where the procedure was called.
In MIPS there won't be anything such as an undefined variable, since we are only using registers. I'm sure the right answer probably had something to do with recursion, but I can't think of any.