| A | B |
|---|
| organism | a living thing that obtains food, water, shelter, and other things it needs to live, grow, and reproduce from its environment |
| habitat | a place where an organism lives |
| shelter | protected place to live |
| requirement | needs |
| Photosynthesis | A process in which water, sunlight, and carbon dioxide are combined to make food |
| Species | a group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce. |
| Population | all the members of one species in a particular area |
| Community | all the different populations that live together in an area |
| Ecosystems | The community of organisms that live in a particular area, along with their nonliving surroundings |
| soil | earth, ground |
| oxygen | gas in the air that the animals breathe in |
| nutrients | substances that help plants or animals grow |
| Producer | An organism that can make its own food |
| Consumer | An organism that obtains energy by feeding on other organisms |
| herbivores | consumers that eat only plants |
| carnivores | consumers that eat only animals |
| omnivores | consumers that eat both plants and animals |
| scavenger | carnivore that feeds on the bodies of dead organisms |
| decomposers | break down wastes and dead organisms and return the raw materials to the ecosystem |
| food chain | a movement of food through a community |
