Final answer:
Properly marking testing specimens is important for accurate record keeping, preventing confusion, and documenting specimen characteristics.
Step-by-step explanation:
Properly marking testing specimens is important for several reasons. First, it helps in maintaining accurate and organized records of the specimens, including their origin, date of collection, and any other relevant information. This ensures traceability and facilitates future research and analysis. Second, proper marking helps prevent confusion for other lab students by providing clear identification of each specimen. Finally, marking specimens can also include the use of scales or labels, which aid in documenting the size and characteristics of the specimens.