There aren't any supplies that are officially required for biology class, but a three ring binder or a sturdy folder to house your papers would be beneficial. I also recommend stocking up on lined paper and some type of writing implement. I would stick with standard mechanical pencils myself, but you may purchase whatever suits your preference.
Staying organized is a tough task for many freshmen, so color coding folders or binders is always helpful.
Stay tuned for more tips for success.