biology

2. A measure of the total dry mass of organisms within a particular region
4. Scientific study of interactions among organisms and between organisms and their environment
5. All the different populations living together
7. animals killing other animals
9. Place where an organism lives
12. An animal that eats both plants and animals
13. An organism that breaks down wastes and dead organism

1. A biological community of interacting organisms and their physical environment.
2. land water and earth
3. organism that feeds on plant and animal remains and other dead matter
6. only eats plants
8. A consumer that eats only animals
10. relationship where one organism benefits and the other doesnt affect it
11. group of similar ecosystems that share climates
14. organism makes it own food