walker crossword

4. where beings live
9. feeds on flesh
12. feeds on flesh and plants
13. made up of the parts of Earth where life exists—all ecosystems
16. feeds on plants
19. smallest level of classification
21. one in which one organism, the parasite, lives off of another organism, the host, harming it and possibly causing death.
22. the process of eating other living things
23. an association between two organisms in which one benefits and the other derives neither benefit nor harm.
25. edible protein
27. takes in food
28. a group of people living in the same place or having a particular characteristic in common.
29. the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resourc

1. relating to or resulting from living things, especially in their ecological relations.
2. the dependence of two or more people or things on each other.
3. the doctrine that mutual dependence is necessary to social well-being.
5. a biological community of interacting organisms and their physical environment.
6. the hunted
7. role of being in enviroment
8. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
10. the nutrients in food
11. physical rather than biological; not derived from living organisms.
14. mutually beneficial interactions that occur among individuals of the same species or between different species.
15. eating other living things
17. a biological community of interacting organisms and their physical environment.
18. all the inhabitants of a particular town, area, or country.
20. produces its own food
24. interaction between two different organisms living in close physical association, typically to the advantage of both.
26. the breaking down of food