The use of biological specimens is diverse and plays an important role in scientific research and biological teaching. In addition, they are also of great value in drawing, exhibition, viewing, etc.

For scientific research, biological specimens can provide direct, reliable, accurate and intuitive objects and data for scientific research, which is of great significance for studying the life, growth and development laws of animals and plants. For example, when plant taxonomists systematically classify various plants, they must take plant specimens as the main basis, analyze the differences of research objects in root, stem, leaf, flower, fruit, seed and other aspects through plant standards, so as to correctly judge their characteristics, so as to accurately identify each plant.