Ecology Crossword

3. mixture of chains combined together into one picture
5. study of interactions among and between organisms and their environment
8. amount of living tissue in a given trophic level
10. phosphorus moves between the soil and plants, which are eaten by animals, then their waste products return the sulfur for next generations
11. group of ecosystems that share similar climates and typical organisms
12. step in a food chain or web
13. nutrient whose supply limits productivity
16. consists of all life and plants on earth
17. make their own food and get energy through photosynthesis or chemoosynthesis
18. the 3 stages are precipitation, evaporation, and condensation
19. series of steps where organisms transfer energy by eating and being eaten
20. chemical substances that an organism needs to sustain life

1. group of individuals that belong to the same species and live in the same area
2. non living parts of the environment
4. all the organisms that live in a place together with their physical environment
6. get energy from other sources
7. show the relative amount of energy or matter contained in each level of a chain or web
9. reasons for this are burning of fossil fuels, volcanoes, and decaying animals
14. animal waste decay by the action of bacteria which create ammonia and nitrate products rich in nitrate, and useful for plants to use again
15. any living part of the environment with which an organism might interact