click below
click below
Normal Size Small Size show me how
Ecology
Science 8
| Term | Definition |
|---|---|
| Population | All the individuals in a species who are together at a certain time and place. |
| Community | All populations living in one place at the same time. |
| Ecosystem | Environment. All communities of living organisms interacting with the environment. |
| How do organisms survive? | The ability to respond and change to its environment. |
| How do populations increase? | With enough food and shelter. No disease or predators. |
| How do populations decrease? | Lack of food and shelter. Disease and predators. |
| Producers (Green plants) | use light energy to produce (make) their own food. |
| Consumers (Animals) | Eat energy rich foods. |
| Herbivores | Eat plants only |
| Carnivores | Eat animals only |
| Omnivores | Eat plants AND animals. |
| Decomposers(bacteria and fungi) | Eat wastes and/or dead organisms |
| Energy chart of an ecosystem | sun, producers, consumers, decomposers |
| Competitive interaction | Predator and prey |
| Harmful interaction | parasites |
| Beneficial interaction | species help other species survive |