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science lesson 28

stack name

QuestionAnswer
tropism a plants growth response toward or away from stimulus
hormone a chemical that effects how the plant grows and develops
auxin it speeds up the rate at which the plant cells grow.
photoperiodism a plants respond to seasonal changes in lenght of night and day.
short-day plants when nights are longer
long-day plants when nights are shorter than a critical lengh.
critical night lenght the number of hours of darkness that determins whether or not a plant will flower.
day-neutral dandelions, rice, tomatoes, etc.
dormancy a period when an organism growth or activity stops.
annual flowering plants that complete a life-cycle within a one growing season.
biennials angiosperms that complete their life cycle in two years.
perennials flowering plants that live more than 2 years
tropism a plants growth response toward or away from stimulus
hormone a chemical that effects how the plant grows and develops
auxin it speeds up the rate at which the plant cells grow.
photoperiodism a plants respond to seasonal changes in lenght of night and day.
short-day plants when nights are longer
long-day plants when nights are shorter than a critical lengh.
critical night lenght the number of hours of darkness that determins whether or not a plant will flower.
day-neutral dandelions, rice, tomatoes, etc.
dormancy a period when an organism growth or activity stops.
annual flowering plants that complete a life-cycle within a one growing season.
biennials angiosperms that complete their life cycle in two years.
perennials flowering plants that live more than 2 years
Created by: irockoutloud
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