Ecosystems Crossword

2. - process of converting nitrogen gas into nitrogen compounds that plants can absorb and use
9. - the movement of carbon from the nonliving environment into living things and back
11. - the process by which oxygen is exchanged between the earth and its atmosphere.
12. - the process of a gas changing to a liquid
14. - A diagram that shows the amount of energy that moves from one feeding level to another in a food web
17. - the parts of a habitat that are living, or once living, and interact with an organism
18. An environment that provides the things a specific organism needs to live, grow, and reproduce.
21. - A series of events in which one organism eats another and obtains energy.
22. - Energy cannot be created or destroyed
24. - An organism that obtains energy by feeding on other organisms
25. - A carnivore that feeds on the bodies of dead organisms
26. - Any form of water that falls from clouds and reaches Earth's surface.
28. - An environmental factor that prevents a population from increasing

1. - A consumer that eats only animals.
3. - the nonliving factors in an organism's environment
4. - A biological community of interacting organisms and their physical environment.
5. - A consumer that eats only plants.
6. - Number of individuals per unit area
7. - Things from the environment that organisms need to live, grow, and reproduce
8. - An organism that can make its own food.
10. - network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
13. - The process by which molecules at the surface of a liquid absorb enough energy to change to a gas.
15. - group of individuals of the same species that live in the same area
16. - An organism that breaks down wastes and dead organisms
19. - Matter is not created nor destroyed in any chemical or physical change
20. - All the different populations that live together in an area
23. - A consumer that eats both plants and animals
27. - A living thing