The early hypothesis of was based on observations that suggested continents were once joined together. later, the theory of explained why large pieces of earth's surface move around and how many of earth's features form.

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