Question | Answer |
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 |