vaccination - surrounded by parenchymal ground tissue...

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vaccination The process of protecting against infectious disease by introducing into the body a vaccine that stimulates a primary immune response and the production of memory cells against the disease-causing agent. vaccine A preparation containing dead or weakened pathogens that when injected into the body elicit an immune response. vacuoles Membrane-bound þuid-Þlled spaces in plant and animal cells that remove waste products and store ingested food. PICTURE vagina The tubular organ that is the site of sperm deposition and also serves as the birth canal. PICTURE vascular bundle Groups of xylem , phloem and cambium cells in stems of plants descended from the procambium embryonic tissue layer. vascular cambium A layer of lateral meristematic tissue between the xylem and phloem in the stems of woody plants. Lateral meristem tissue in plants that produces secondary growth. vascular cylinder A central column formed by the vascular tissue of a plant root;
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Unformatted text preview: surrounded by parenchymal ground tissue. vascular parenchyma Specialized parenchyma cells in the phloem of plants. vascular plants Group of plants having lignified conducting tissue (xylem vessels or tracheids). vascular system Specialized tissues for transporting þuids and nutrients in plants; also plays a role in supporting the plant; one of the four main tissue systems in plants. vas deferens The duct that carries sperm from the epididymis to the ejaculatory duct and urethra. The tube connecting the testes with the urethra. vasectomy A contraceptive procedure in men in which the vas deferens is cut and the cut ends are sealed to prevent the transportation of sperm. Surgical separation of the vas deferens so that sperm, while still produced, do not leave the body. vasopressin See antidiuretic hormone. vectors Self-replicating DNA molecules that can be joined with DNA fragments to form recombinant DNA molecules....
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