Answer :

Yes light factor affect the distribution of organisms.

Since plants require sunlight for photosynthesis and to produce food. And photosynthesis is possible only in presence of sunlight. Therefore, light is an important factor that affects the distribution of plants.

For examples:

(i) Many species of small plants (herbs and shrubs) growing in forests are adapted to photosynthesize optimally under very low light conditions so they will be seen distributed in shady areas under tall, canopied trees. The small plants in the forests are usually overshadowed by tall, canopied trees.

(ii) Many plants are also dependent on sunlight to meet their photoperiodic requirement for flowering.

(iii) Many plants in the shade will grow vertically to gain access to light. These plants will appear to have smaller leaves than other plants of the same species of the same age found in conditions with better sunlight.

(iv) Large sized trees will be present in areas that get abundant sunlight,

(v) Plants dependent on sunlight to meet their photoperiodic requirements for flowering, will try to be distributed in area, where this requirement is being met for their reproductive success.

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