Brownsville is a borough in Fayette County, Pennsylvania, United States, officially founded in 1785 located 35 miles (56 km) south of Pittsburgh along the Monongahela River.
2nd Item Specification: Given a group of organisms and a key, classify organisms based on observable characteristics. Depth of Knowledge Level 1. 1  A tool used by scientists to identify unknown organisms based on observable characteristics is called a. 2  dichotomous key.
1 A dichotomous key is a detailed list of identifying characteristics that includes scientific names. 2  Carolus Linnaeus, a Swedish naturalist, developed a new system of grouping organisms that was accepted and used by most scien} DUPipeline_QISnippet_FirstGood_Snippet_v1: {},{-1|-1|1|Classify Organisms Qand A.