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a space or gap between two teeth. Many species of mammals have diastemata as a normal feature, most commonly between the incisors and molars.
(also called macromolecules) large, more complex molecules formed when monomers join together....
the effect of the relative lengths of daylight and darkness on the physiology and behaviour of...
the second biological classification group (taxon) that is divided into phyla (for animals) or...
the instrument that measures the volume of air entering and leaving the lungs.