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the domain that contains prokaryotic micro-organisms. Some live in extreme environments, such as hotsprings. Because of some similarities with eukaryotes the Archaea are more likely to be the ancestors of eukaryotes than the Eubacteria.
substances that have a harmful effect on the environment and also on human health.
damage caused to the vegetation when it is intensively fed upon by grazing animals and does not...
the tough connective tissue membrane surrounding bones on the outside. It contains nerves and...