Changes

: '''Phototropism''' can be [[Positive Phototropism]] positive or [[Negative Phototropism]]negative.: In the [[Shoot System|shoot system]] of [[plant]]s the [[growth]] is due to [[Positive Phototropism|positive phototropism]] where the [[shoot]]s grow towards the [[light]].: In the [[Root System|root system]] of [[plant]]s the [[growth]] is due to [[Negative Phototropism|negative phototropism]] where the [[root]]s grow away from the [[light]].