resource – living and nonliving things in an ecosystem that an organism needs to survive.

Identify the resources organisms need to survive.

Organisms need a variety of resources to survive in an ecosystem. Here are some examples of resources that living organisms need:

1. Water: Almost all organisms require water for various vital functions such as hydration, metabolism, and homeostasis.

2. Sunlight: Sunlight is the primary source of energy for many organisms. Through the process of photosynthesis, plants and algae convert sunlight into food energy for themselves and other organisms they support, such as herbivores.

3. Oxygen: Aerobic organisms, including most animals and some plants, require oxygen for respiration, which is the process of converting food energy into usable forms of energy.

4. Food: Organisms obtain nutrients and energy from consuming other organisms or organic matter, such as plants, other animals, or decomposing material.

5. Shelter/Habitat: Organisms require suitable places to live, breed, and seek protection from predators or adverse environmental conditions. This can include habitats like forests, grasslands, bodies of water, or even burrows and nests constructed by the organisms themselves.

6. Nutrients: Various essential nutrients, such as carbon, nitrogen, phosphorus, and minerals, are required by organisms for their growth, maintenance, and development.

7. Temperature: Different organisms have specific temperature preferences, and their survival depends on maintaining suitable body temperature. Extreme temperatures can be harmful or even fatal to many organisms.

8. Other living organisms: Many organisms rely on interactions with other species for survival. For example, predators require prey as a food source, while certain plant species rely on specific pollinators for reproductive purposes.

9. Symbiotic relationships: Some organisms have symbiotic relationships where they rely on each other for survival. For example, certain bacteria living in the intestines of animals help in digestion, and some parasites can only survive by living on or within a host organism.

These are just a few examples, and the specific resources and requirements vary depending on the organism's species, its niche in the ecosystem, and the characteristics of the ecosystem itself.