Ecosystems Mixed Practice
| # | Answer |
|---|---|
| 1 | An ecosystem is a community of living things and nonliving things that interact in the same area. |
| 2 | Examples include sunlight, water, air, soil, and temperature. Any two are correct. |
| 3 | The rabbit is a consumer because it gets energy by eating plants. |
| 4 | The wolf is the predator, and the deer is the prey. |
| 5 | Plants are important because they make their own food using sunlight and provide energy for other organisms in the food chain. |
| 6 | Algae → small fish → big fish → heron |
| 7 | The bird population might decrease because they would have less food available. |
| 8 | One likely effect is that animals may lose shelter or food, because trees provide homes and resources for many organisms. |
| 9 | If the mouse population goes down, owls and snakes may have less food, so their populations could also decrease. More seeds may remain uneaten. |
| 10 | Possible effects include fewer plants growing because of lack of water, and animals having less food or water, which could lower their populations or make them move to another area. |