... Association of Biology Teachers. All rights reserved. Please direct all requests for permission to photocopy or reproduce article content through the University of California Press's Reprints and Permissions web page, www.ucpress.edu/journals.php?p=reprints . 2018 dichotomous key descriptive science...

... for permission to photocopy or reproduce article content through the University of California Press's Reprints and Permissions web page, www.ucpress.edu/journals.php?p=reprints . 2018 comparative morphology dichotomous key parsimony phylogenetic trees synapomorphy tree thinking 18S small subunit...

... are excellent teaching tools for science classrooms. However, accurate insect identification can be especially challenging for beginning students. Accordingly, we have developed a dichotomous key that both precollege and university instructors and students can use efficiently to correctly identify 18 taxonomic...

... and prepared slides of fresh pollen from each plant. Digital images of fresh pollen from these plants were captured to build an online digital pollen library. A portion of the online pollen images serves as an original dichotomous key to be constructed by students in 10th grade Biology. This article describes...

... some things in nature cannot always be easily assigned to predetermined categories (such as dichotomous keys or textbook descriptions) and how using average measurements to describe plants will sometimes fail. 3 e-mail: [email protected] . © 2010 by National Association of Biology Teachers 2010...