In this activity, a visual model of the reactions of photosynthesis (and to a lesser extent, respiration) is provided to students. Students evaluate the model in groups, and subsequently use it to answer questions about the model as presented, as well as the results of perturbations to the pathways indicated in the model. These ?perturbation? questions require students to step back and ana...

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The Tree of Life Web Project is a collection of information about biodiversity compiled collaboratively by hundreds of expert and amateur contributors. Its goal is to contain a page with pictures, text, and other information for every species and for each group of organisms, living or extinct. Connections between Tree of Life web pages follow phylogenetic branching patterns between groups of...

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