Does light factor affect the distributio | Class 12 Biology Chapter Organisms and Population, Organisms and Population NCERT Solutions

Question:

Does light factor affect the distribution of organisms? Write a brief note giving suitable examples of either plants or animals.

Answer:

Yes, light factor affects the distribution of plants. Since, plants produce food through photosynthesis process which is possible only when sunlight is present as the source of energy. Light is an important factor that affects the distribution of plants. Examples:

Many species of small plants (herbs and shrubs) growing in forests are adapted to photosynthesis optimally under very low light condition because they are constantly overshadowed by tall canopied trees.
Many plants are also dependent on the sunlight to meet their photoperiodic requirement for flowering. Animals too depends on light factor, for animals light is important in that way, they use the diurnal and seasonal variations in light intensity and duration (photoperiod) as cues for timing their foraging, reproductive and migratory activities.
Many plants in the shade will grow vertically to gain access to the light. These plants will appear to have smaller leafs and smaller than others of the same age found in conditions with better sunlight.

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 11: Does light factor affect the distribution of organisms? Write a brief note giving suitable examples ....

Does light factor affect the distributio | Class 12 Biology Chapter Organisms and Population, Organisms and Population NCERT Solutions

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