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Systems 4.4

QuestionAnswer
hormone a chemical that affects growth and development
auxin a hormone that controls a plant's growth and response to light
tropism A plant's growth response toward or away from a stimulus
photoperiodism A plant's response to seasonal changes in the length of night and day.
dormancy A period of time when an organism's growth or activity stops.
metamorphosis a process in which an animal body undergoes major changes in shape and from during its life cycles
Created by: cheryl.schaeffer
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