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the fluid that circulates through the lymphatic system. It is similar to blood plasma in composition, but does not contains cells or the large proteins that occur in blood.
the series of activities that takes place in a cell leading to its division and duplication (...
a special kind of biological identification key which consists of sets of organised pairs of...
the instrument that measures the volume of air entering and leaving the lungs.
organelles that only occur in the green parts of plants. They contain the green pigment...