To correctly use a dichotomous key, one must start at the beginning and answer the questions, then follow the answers to the correct number of the next question, until they eventually find the name of the organism they are attempting to find. The purpose of a dichotomous key is to identify organisms by their appearance and qualities using an easy to read key. I created my key by looking for key characteristics that two or more the algae shared, and then splitting them up to name the different algaes. Some of the algaes were hard to identify by simply their outside characteristics, so I also used smell as a characteristic to include in my key.
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