ANSWERS AND ITS FUNCTIONS:

1.  D. Digestive - The digestive system breaks down food into substances which can be absorbed and utilized by the body for energy and growth.

2. M. Musculoskeletal - The musculoskeletal system (Or muscular system for short) holds the skeleton parts together and supports the movement of its various parts.

3. E. Excretory - The excretory system is essential in the removal of wastes from the body.

4. R. Respiratory - The respiratory system is responsible for breathing wherein gases are exchanged to be carried by the blood for use in biological processes. Specifically for production of energy to support life.

5. C. Circulatory - The circulatory system (also known as cardiovascular system) is responsible for for transporting nutrients and gases, carried by the blood, to all parts of the body.

Correct me if I am wrong.. Pero I hope it helps po! Paki brainliest answer po thank you so much! :3