The document discusses how the body works through its organ systems performing vital functions, and recommends healthy habits to maintain good health. It focuses on the male and female reproductive systems as examples of organ systems that must work together for vital functions.

1. 1. How the body works.
2. Vital Functions.
3. Healthy habits.
Blanca Fernández Martín

2. To perform our vital functions,
our organ systems need to work together.

5. MALE
REPRODUCTIVE SYSTEM
FEMALE
REPRODUCTIVE SYSTEM