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26.21: V

Created by: CK-12
vaccine
substance containing modified pathogens that does not cause disease but provokes an immune response and results in immunity to the pathogen
vacuole
large saclike organelle that stores and transports materials inside a cell
vagina
female reproductive organ that receives sperm during sexual intercourse and provides a passageway for a baby to leave the mother’s body during birth
vascular tissue
type of tissue in plants that transports fluids through the plant; includes xylem and phloem
vector
organism such as an insect that spreads pathogens from host to host
vegetative reproduction
asexual reproduction in plants using nonreproductive tissues such as leaves, stems, or roots
vein
type of blood vessel that carries blood toward the heart from the lungs or body
ventilation
process of carrying air from the atmosphere into the lungs
vertebrae (singular, vertebra)
repeating bony units that make up the vertebral column of vertebrates
vertebral column
bony support structure that runs down the back of a vertebrate animal; also called a backbone
vertebrate
animal with a vertebral column, or backbone
vesicle
small saclike organelle that stores and transports materials inside a cell
vesicle transport
type of active transport in which substances are carried across the cell membrane by vesicles
vestigial structure
structure such as the human tailbone or appendix that evolution has reduced in size because it is no longer used
villi (singular, villus)
microscopic, finger-like projections in the mucous membrane lining the small intestine that form a large surface area for the absorption of nutrients
virion
individual virus particle that consists of nucleic acid within a protein capsid
virus
tiny, nonliving particle that contains DNA but lacks other characteristics of living cells
vitamin
organic compound needed in small amounts for proper body functioning
vivipary
type of reproduction in which an embryo develops within, and is nourished by, the mother’s body
vulva
external female reproductive structures, including the labia and vaginal opening

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Feb 23, 2012

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Nov 25, 2014
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CK.SCI.ENG.SE.1.Biology.26.22

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