Dr. Mitchell - Anatomy and Physiology I & II (Bio 141/142) - Keys to Models Tidewater Community College - Chesapeake Campus CAUTION - THESE KEYS ARE INTENDED TO BE USED AS SECONDARY RESOURCES ONLY. THEY MAY HAVE TYPO's AND MISTAKES - IT IS THE STUDENT'S RESPONSIBILITY TO ENSURE CORRECTNESS - YOUR LAB BOOK IS YOUR PRIMARY RESOURCE NOT THESE KEYS