University of Michigan - Neuroscience vs. Biology for Pre-med

I’m interested in both biology and neuroscience, but probably leaning toward neuroscience. Also, I want to do pre-med.
I have a couple questions about University of Michigan’s neuroscience major vs. biology major:

Is it easy to switch from neuroscience to biology major?

Are all of the classes required for pre-med also part of the curriculum to complete a neuroscience major?

How are the professors in the biology/neuroscience department?

Thanks!

Maybe post this on the University of Michigan page (under Colleges & Universities).