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small groups of cells found in the pancreas that secrete the hormones insulin and glucagon.
the protection of species, habitats and ecosystems and the management of natural resources.
the U-shaped part of the nephron tubule situated between the proximal and distal convoluted...
reactions in which large complex molecules are broken down to form smaller,simpler molecules;...
the internal supporting framework made of cartilage and/or bone. This type of skeleton occurs in...