controlled examine= comp ar control assemblage to an experimental mathematical group *control group does not acquire t he factor that you are testing *experimental group does have the factor beingness tested Types of Microscopes: 1. light= the ones most used in classrooms 2. electron= uses a beam of electrons instead of light; around 200,000 quantify stronger than light microscopes If you want to get a ripe essay, order it on our website: OrderCustomPaper.com
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