Environmental Science Ch.4

5. the selective breeding of organisms by humans for specific characteristics
7. a group of various species that live in the same place and interact with each other
8. the survival and reproduction of organisms with particular traits
10. animals that lack backbones
11. a diverse group of one-celled organisms and their many-celled relatives
12. The living and once living parts of an ecosystem
14. very common bacteria; found in soil and animal bodies
16. an individual living thing
17. all of the organisms living in an area together with their physical environment
18. bacteria that lack nuclei; often found in extreme places
20. a group of organisms that can mate to produce fertile offspring.
21. an organism whose cells have nuclei and cell walls.

1. the place that an organism lives
2. woody plants that produce seeds but their seeds are not enclosed in fruit.
3. the ability of one or more organisms to tolerate a particular chemical designed to kill it
4. the non living parts of the ecosystem
6. a flowering plant that produces it's seeds in a fruit
9. a change in the characteristics of a population from one generation to the next
13. animals with backbones
15. all the members of the same species that live in the same place at the same time
19. an inherited trait that increases an organism's chance for survival and reproduction in a certain environment.