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a muscle, gland or organ capable of responding to a nerve impulse in order to bring about a reaction to stimuli.
reproductive or sex cells that contain the haploid set of chromosomes. The male gametes are...
a rubbery, protein-carbohydrate complex that forms the matrix of cartilage.
(also called secondary thickening) growth due to new cells being formed by the secondary...
epithelial tissue that lines the inner spaces of the body or organs.