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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.
all the ecosystems on the Earth, all the species within these ecosystems and the genetic...
a form of malnutrition caused by a severe shortage of protein in the diet.
the process whereby the products of digestion are transported from the digestive tract into the...
undifferentiated mass of tissues that forms when small pieces of the parent plant, called...
tough connective tissue found in conjunction with muscle, cartilage and bone.