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Article
American Institute of Biological Sciences

Action Bioscience: Evidence of Evolutionary Transitions

For Students 9th - 10th
Charles Darwin's theory that all living organisms are connected in some way has been confirmed through intense studies over centuries. Understand the similarities that bond all things living to the same family tree by checking out this...
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Article
BiologyWise

Biology Wise: Synapomorphy

For Students 9th - 10th
Explains what synapomorphy is by using examples to demonstrate the concept, which plays an important role in the system of cladistics.
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Handout
BiologyWise

Biology Wise: Examples of Homologous Structures

For Students 9th - 10th
Explains what homologous structures are and how they indicate common ancestry between species. Discusses morphological homology, which refers to anatomical and skeletal similarities, and molecular homology, which refers to common...