Biology is worthless as a major; as long as you take the pre-med requirements, they don't care what your major is.
Granted, Biology requires a lot of the same classes, so it might be easier to be a bio major if you're already pre-med, but the biology degree itself isn't worth anything.
Taking more irrelevant classes is probably harder (as I said), but because it's harder it is also more impressive and thus looks better on your resume (as rms said).
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Biology is good if your grades are good enough to get into a professional program. Not so much otherwise.
Biology is worthless as a major; as long as you take the pre-med requirements, they don't care what your major is.
Granted, Biology requires a lot of the same classes, so it might be easier to be a bio major if you're already pre-med, but the biology degree itself isn't worth anything.
For the purpose of getting into med school, as long as you take the pre-med requirements, you are better off majoring in anything but biology.
That's news to me. It seems like majoring in anything else would be a waste of time because you would have to take more irrelevant classes.
Taking more irrelevant classes is probably harder (as I said), but because it's harder it is also more impressive and thus looks better on your resume (as rms said).
Some of them prefer that you have a degree, but it's true that you don't have to have it.