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Plant Responses and

TermDefinition
Tropism The response of a plant toward or away from a stimulus.
Hormone Chemical that affects growth and development.
Auxin A plant hormone that speeds up the rate at which a plants cells grow controls a plants response to light
Dormancy A period of time when an organisms growth or activity stops.
Critical night length The number of hours of darkness that determines whether or not a plant will flower.
Long-day plant A plant that flowers when the nights are shorter than the plants critical night length.
Photoperiodism A plants response to seasonal changes in the length of night and day.
day-neutral plant A plant with a flwering cycle that is not sensitive to periods of light and dark.
Short-day plant A plant that flowers when the nights are longer than the plants critical night length
Created by: AAron1738