1. Water: All living things need water to survive. Water is essential for many biological processes, including transporting nutrients, regulating temperature, and carrying waste products.

2. Food: Organisms need food to provide energy and materials for growth and repair. This energy is obtained through various means, like photosynthesis for plants and consuming other organisms for animals.

3. Shelter: Shelter protects organisms from the elements and provides a safe space for them to live, reproduce, and raise their young.

4. Air (for most organisms): Most organisms require oxygen to breathe. This oxygen is used in cellular respiration, which converts food into usable energy.

5. Stable Environment: Organisms need a stable environment with a suitable temperature, pH, and other factors that allow them to thrive.

While these are the five basic needs, there are nuances depending on the specific organism. For example, some organisms can survive with very little water, while others need a constant supply. Some organisms, like plants, can create their own food, while others need to consume other organisms.

It's important to note that these five needs are interconnected and essential for the survival of all living organisms.