● brewer’s yeast (Saccharomyces cerevisiae) ● E. coli bacteria (Escherichia coli)

● green hydra (Hydra viridissima)

● house cat (Felis catus)

Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key. Enter the labels for each box and letter in the table below.