So, to clarify:
* Bachelor of Science (B.S.) in Biology: This is a degree program. You would carefully select your electives and required courses to meet the pre-veterinary prerequisites.
* Pre-veterinary curriculum: This is a collection of courses (e.g., biology, chemistry, physics, mathematics, animal science, possibly anatomy & physiology) you complete within your B.S. program to make you a competitive applicant for veterinary school.
In short: you get a biology degree *while* completing the pre-veterinary requirements. The biology degree is the broader framework; the pre-vet curriculum is the specific path within it.