Andrew is trying to identify an unknown element. The element is dull and brittle, and it is a poor thermal and electrical conductor. Where on the periodic
table is this element most likely found?

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