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regions in particular geographical locations with similar climates and vegetation types.
single-celled organisms with all life functions performed within the cell.
when the entire heart, both of the atria and ventricles, is relaxed.
an eating disorder in which sufferers consume an excessive amount of food in a short time, and...
the collection and disposal or recycling of waste materials and the monitoring of waste.
fats that are solid at room temperature and are found in animals. They are thought to be linked...