question_answer 26)

  Which of the following forest plants controls the light conditions at the ground? (a) Lianas and climbers  (b) Shrubs                           (c) Tall trees                       (d) Herbs

Answer:

                    (c) In a forest ecosystem, light is an important abiotic component that controls a number of life processes in organism. In forest, its intensity duration and quality at ground is controlled by tall trees, which have higher productivity than shrubs and herbs growing underneath. Lianas and climber are woody vines which make commensalism association with tall trees. Herbs and shrubs occupies lower strata of forest.