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plant Responses

Tropism the turning of all or part of an organism
Hormone is a chemical that affects how the plant grows and develops
auxin speeds up the rate at which a plant cells grows and controls a plant response to light
photoperiodism the response of an organism to seasonal changes in day length.
critical night length is the number of hour of darkness that determines weather or not a plant will flower
short-day plants A plant that requires a long period of darkness, is termed a "short day"
long -day plant when night are shooter than a critical length
Day-neutral plants a flowering cycle that is not sensitive to periods of light and dark
dormancy is a period when an organism's growth or activity stops
Created by: kcordonacevedo