Pl ! all living organisms, including bacteria, plants, humans and other animals, are made up of one or more cells. explain why all living organisms need to have dna. include the words genes and proteins in your explanation.

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

What are some natural processes that represent physical and chemical changes?

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