Biological materials are substances that come from living organisms, including plants, animals, and microorganisms. These materials can be used in various fields, such as medicine, agriculture, and environmental science. Examples include tissues, cells, and proteins, which play crucial roles in the functioning of life and can be harnessed for research and development. In addition to their natural forms, biological materials can also be modified or engineered for specific purposes. For instance, scientists can create genetically modified organisms (GMOs) to improve crop yields or develop new medical treatments. Understanding these materials helps us innovate and solve problems in health and sustainability.