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bead-shaped proteins that occur in chromosomes.
the process in plant cells where the cell membrane pulls away from the cell wall due to the loss...
proteins that identify and neutralise foreign and potentially harmful antigens by binding onto...
biological classification group (taxon) for animals that is divided into classes. The plural of...
a mixture of enzymes and other substances secreted by the exocrine cells of the pancreas.
an organ system that passes nutrients, gases, hormones, blood cells, etc. to and from cells in...