Which of the following is not part of the vertebrel. column

Discuss the functions of epithelial connective nerviud and muscular tissues

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

In the practice of science, this type of reasoning is used to develop explanations.