A tropism is the growth of a plant in response to a awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater such as light or gravity.
Tropisms improve a plant’s chances of awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater and reproduction.
The tropism is described as positive if the growth is awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater the stimulus and negative if away from the stimulus.
The two most important tropisms are awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater and geotropism.
Phototropism is a plant's response to awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater. It causes a plant's stem to grow up awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater the light. This is an advantage to the plant because the leaves get more light resulting in greater awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater production by photosynthesis.
Geotropism is a plant's response to awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater. This causes the awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater of a plant to grow downwards. This greatly improves anchorage and increases the absorption of water and awaydownwardsfoodgeotropismgravitylightmineralsmorephototropismrootsstimulussurvivaltowardsupwater.