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molecule that forms when carbon dioxide attaches itself to the amino group of a haemoglobin molecule
a substance, usually a liquid, in which other substances can dissolve.
cup-shaped sac at the beginning of the nephron, which surrounds the glomerulus.
double-membraned, pigmented, cytoplasmic organelles found in plant cells. The organelles have...
damage caused to the vegetation when it is intensively fed upon by grazing animals and does not...
simple chemical substances needed by the body in relatively small amounts for normal growth and...