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15.4: PowerPoints - Biology

A full set of PowerPoint decks is provided for download below. All decks are tightly aligned to the modules in this course. Since they are openly licensed, you are welcome to retain, reuse, revise, remix, and redistribute as desired.These PowerPoint files are accessible. If you do revise them, make sure to follow these guidelines for creating accessible PowerPoints.
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15.7: Limitations of Phylogenetic Trees - Biology

It may be easy to assume that more closely related organisms look more alike, and while this is often the case, it is not always true. For example, the phylogenetic tree in Figure 1 shows that lizards and rabbits both have amniotic eggs, whereas frogs do not; yet lizards and frogs appear more similar than lizards and rabbits.
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