Four groups of students plan scientific investigations to answer four questions for the science fair. Which question would most likely be answered with an experimental investigation?

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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

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Were you able to observe the nucleolus in any of the cells if so which ones