Final answer:
Organs are structures made of different types of tissues working together to perform specific functions, and are components of organ systems which support the life of an organism.
Step-by-step explanation:
The structures that comprise different types of tissues working together to perform a particular function are known as organs. In the organization of the body, cells come together to form tissues, such as muscle tissue or nerve tissue. Then, different tissues combine to create an organ like the heart, stomach, or brain. These organs are anatomically distinct structures that contribute to the body's physiological functions and are essential components of organ systems, such as the digestive system or the circulatory system. Collectively, organ systems function together to support the life and health of the entire organism. Therefore, the correct answer to the question is d) organs.