| A | B |
|---|
| Relationship between species in which one organism (prey) acts as a food source for another organism (predator) | Predation |
| In an ecosystem, occurs when more than one individual or population tries to make sue of the same limited resource (like food or water) | Competition |
| Relationship between two species in which both organisms benefit. | Mutualism |
| Relationship between species in which one organism is helped and the other is unaffected | Commensalism |
| Relationship between species in which one organism (parasite) benefits and the other (host) is harmed but not usually killed. | Parasitism |
| Consumes flora | Herbivore |
| Consumes flora & fauna | Omnivore |
| Consumes fauna | Carnivore |
| Breaks down organic material | Decomposer or Detrivores; examples mushrooms and insects |
| The living things that shape an ecosystem. Think BIOLOGY! Includes flora, fauna, fungi, bacteria | Biotic Factors |
| Non-living components that influence an ecosystem includes temperature, air currents, minerals | Abiotic Factors |
| Indigenous; the population that evolved together before invasive species | Native population |
| Food, shelter, water, space, disease, nesting sites | Limiting factors |
| Involving a close relationship of mutual dependence | symbiotic |
| Food web | network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
| Food chain | A series of steps in which organisms transfer energy by eating and being eaten |
| Energy pyramid (10% rule) | diagram that compares energy used by producers, primary consumers, and other trophic levels |
| Biome classification | Five major types of biomes: aquatic, grassland, forest, desert, and tundra. More specific categories: freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga (cold forest). |
| Invasive species | species that enter new ecosystems and multiply, harming native species and their habitats |
