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an infectious disease that can be spread or transmitted from one person to another.
refers to any variation in the nucleotides, genes, chromosomes, or whole genomes of organisms....
(also called selectively permeable membrane) a membrane which allows some substances to cross it...
structure within the cell cytoplasm that is surrounded by its own membrane and has a specific...
the non-living ground tissue with thick-walled cells that gives strength, support and protection...
the first step of cellular respiration in which glucose is converted to pyruvic acid with small...