Maureen is constructing a model of the tree of life. She begins with three main branches for the three domains. Then she draws smaller branches that show evolutionary lineages. For the model to accurately represent the number and diversity of species in the domains, how should Maureen draw the smaller branches

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals