Show I 1 sense of sight in plants seems proved the sense most developed in plants Is that of sight which ena enables bleLl them to see light but not to distinguish objects this sense limitation Is 13 found among many living creatures such us its the earthworm oyster and coral etc which possess no localized visual organ but give proof of their luminous impressions by the contractions that they manifest when exposed to a ray of sunlight similarly it la Is easy to gauge the influence of light on plants cultivate a plant in c n room with a window only on one side and its stalks in growing will incline toward the source of light physiologists explain this by suggesting that the side to the dark grows more quickly than that exposed to the light there remains however the fact that the plant has reacted to the light of whose effect it was conscious A sense common to many plants la Is that of touch of tills this the most illustrative example is as its name implies the sensitive plant another leaf responsive to tho the touch Is the catchfly catch fly whose two halves close down one upon the other by means of a central hinge |