NEET2026BiologyChapterActual
In a dense forest ecosystem, many species of herbs and shrubs are naturally adapted to photosynthesise optimally under very low light conditions. What is the primary ecological reason for this adaptation?
Options
- AThey need to keep their stomata closed during the day to minimize transpirational water loss.
- BThey are constantly overshadowed by tall, canopied trees.
- CLow light intensity is required to prevent the photo-oxidation of their delicate chlorophyll molecules.
- DThey rely primarily on soil nutrients and require minimal solar energy for survival.
Correct answer
B. They are constantly overshadowed by tall, canopied trees.
Step-by-step solution
In a dense forest ecosystem, tall trees form a dense canopy that blocks a significant amount of sunlight from reaching the forest floor. As a result, the small plants such as herbs and shrubs growing in the understory receive very little sunlight. To survive and thrive in this environment, these plants have naturally adapted to photosynthesise optimally under very low light conditions because they are constantly overshadowed by the tall, canopied trees. Answer: They are constantly overshadowed by tall, canopied tre