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PPT
Curated OER

Zooplankton

For Teachers 9th - 12th
Holoplankton are always plankton, whereas meroplankton are only plankton as larvae. Reveal several examples of each to your young marine biologists with this PowerPoint presentation. The first seven slides, an introduction to...
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PPT
Curated OER

Gas Exchange And Respiratory Systems.

For Teachers 10th - 12th
Explore structures within the realm of gas exchange in terrestrial and aquatic life.  The excellent, labelled diagrams and clear descriptions help your students view the different structures and adaptations that have developed. The 29...
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PPT
Curated OER

Gas exchange: Respiratory Systems

For Teachers 10th - 12th
The need for a respiratory system in humans versus being reliant on gas exchange structures is demonstrated. There are many details about the advantages and disadvantages of each mechanism.  Students are able to learn about the...