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Q.
Columella is a specialized structure found in the sporangium of :
Haryana PMTHaryana PMT 2000
Solution:
Columella is present on the tip of long erect stalk known as sporangiophore, present in the Rhizopus. It supports the Sporangium which has asexual spores. It helps nutrient exchange between the active protoplasm below and the developing spores inside the upper portion of the sporangial head.