Intellectual Olympiad in Botany - 2026 ongoing

Subject: Botany
Level: IX
Category: student
Quiz questions: in English
Example question: According to the pressure-flow hypothesis, what primarily drives the movement of assimilates through a phloem sieve tube from a source to a sink? Evaporation of water from the leaf surface, Active pumping by xylem vessels, Gravity acting on dissolved sugars, A hydrostatic pressure gradient generated by sugar loading and unloading