What would a biologist most likely study all the chemical activities of an organism to obtain information about the organisms

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

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Why is it important to study each branch of earth science?