BiologyWise
Biology Wise: Different Types of Bacteria
Discusses the different criteria used to classify bacteria and the groups of bacteria within each category. Groups are organized by characteristics such as morphology, shape, cell wall structure, and presence of flagella.
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Alternative Classifications of Life
The Linnaean system (1758) classified all macroscopic living organisms as either Animals or Plants, based on whether they moved [anima, with a soul] or not. Thus, Fungi were included as plants. With the invention of the microscope and...