Across
- 3. these things need food, water, shelter, air, and space to live
- 4. these animals have a spinal column or backbone
- 7. the order in which organisms depend on each other for food
- 8. a community of interacting organisms and their physical environments
- 9. the natural home of a plant, animal, or other organism
- 10. these things need water, sunlight, nutrients, space, and air to live
Down
- 1. this part of a plant supports it and transports nutrients and water to the rest of the plant
- 2. do not have a spinal column or backbones
- 5. this part of the plant produces food
- 6. the introduction of harmful materials into the environment
- 11. this type of habitat is very cold and polar bears live here