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Chapter 27 Vocabulary - Plant Growth and Development

HRW Vocabulary

AB
annual (27-1)a plant that completes its life cycle and dies within one growing season
annual ring (27-1)layer of secondary xylem formed each year
apical dominance (27-2)the inhibition of the growth of buds along a stem by the apical meristem
apical meristem (27-1)region where primary growth is produced
auxin (27-2)a chemical that causes a stem to bend toward light
biennial (27-1)plant that takes two growing seasons to complete its life cycle
cork cambium (27-1)the meristem that lies within the bark
dormancy (27-2)condition in an inactive seed or plant
germination (27-1)process by which a plant embryo resumes its growth
hormone (27-2)a chemical produced in one part of an organisms and transported to another part, where it causes a response
mineral nutrient (27-2)needed by plants in small amounts
perennial (27-1)a plant that lives for several years
photoperiodism (27-2)the response of plants to the length of days and nights
primary growth (27-1)growth that increases the length or height of a plant
secondary growth (27-1)growth that increases the width of a plant's stems and roots
vascular cambium (27-1)the meristem that lies just under the bark
tropism (27-2)a response in which a plant grows either toward or away from a stimulus


Mrs. Donna Cooper

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