What are biological tests?

Examining water, soil, and living organisms to look for chemicals and toxins. [1] The word biological means groups of plants and animals living in the same environment and interacting with each other. [2] Biological tests are used to tell the quality of a area through studying living things [4].

http://www.the-aps.org/education/k-12misc/images/biology.gif
http://www.the-aps.org/education/k-12misc/images/biology.gif

[3]



References
[1] Moran, Casey. Interview with dad. 19 November 2008
[2] Moran, Casey. http://www.ecoagriculture.org/page.php?id=65&name=Glossary 20 November 2008
[3] http://www.the-aps.org/education/k-12misc/images/biology.gif 20 November 2008
[4] Galluzzo, Kaulin, Field Trip Description