I searched for a while for a good powerpoint presentation for a high school Biology class. I found this powerpoint about Plant Diversity. It is quite long because there is a section for each type of plant.
The first section (slides 1-18) depicts how the rest of the powerpoint is designed. I liked this presentation because there are realistic pictures of the different plants to introduce each type. Also, there are a couple diagrams to show the relationship of the various plants and how they evolved. The wording in the presentation to relay information is short and sweet (for the most part).
Biology Chapter 22 Plant Diversity
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