Ecology Crossword

1. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
3. a type of food which is usually eaten on a bun and is made from beef
6. animals that get eaten by predators
8. an animal that eats other animals.
9. a species which is likely to become endangered
12. an association between two organisms in which one benefits and the other derives neither benefit nor harm.
15. that one dinosaur that has a "p" in front of it's name for no reason
16. a non-living part of an ecosystem that shapes its environment.
17. the evolutionary result of a species morphological, physiological, and behavioral adaptations to its surroundings.
18. a living organism that shapes its environment.

2. the number of people, other living organisms, or crops that a region can support without environmental degradation.
4. an organism that eats other plants or animals for energy and nutrients.
5. mutual dependence and benefit
6. the practice of living as a parasite in or on another organism
7. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.
10. a species that is in danger of going extinct.
11. a system of interlocking and interdependent food chains.
13. a hierarchical series of organisms each dependent on the next as a source of food.
14. the natural home or environment of an animal, plant, or other organism.
16. makes its own food and energy