...Kathryn M. Flinn In this classroom activity, students build a phylogeny for woody plant species based on the morphology of their twigs. Using any available twigs, students can practice the process of cladistics to test evolutionary hypotheses for real organisms. They identify homologous characters...

... homology node terminal node branch transition root natural taxon sister group out group Morphological traits can be used to readily generate phylogenetic data sets by undergraduate and high school students exploring evolutionary biology. Traits can be scored without specialized equipment...