Isaac's crossword

3. the regions of the surface, atmosphere, and hydrosphere of the earth.
4. when two organisms of different species "work together," each benefiting from the relationship.
5. a biological community of interacting organisms and their physical environment.
7. interaction between two different organisms living in close physical association
8. the branch of biology that deals with the relations of organisms to one another.
12. the preying of one animal on others.
13. the ability or willingness to tolerate something
14. factor a living organism that shapes its environment.
15. factor anything that constrains a population's size and slows or stops it from growing.
16. the role an organism plays in a community.

1. the natural home or environment of an animal, plant, or other organism.
2. a relationship between individuals of two species in which one species obtains food
6. community an interacting group of various species in a common location.
9. factor a non-living part of an ecosystem that shapes its environment
10. all the inhabitants of a particular town, area, or country.
11. a large naturally occurring community of flora and fauna occupying a major habitat
12. a relationship between the two living species in which one organism is benefitted at the expense of the other.