Personalized Biology Teacher Worms Women's V-Neck T-Shirt. Biology Teacher in wormy text a humorous design for your favorite teacher or college graduate at back to school, birthdays, holidays and graduations. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit