Q: Which one of the following pairs is not correctly matched?
(a)Positively phototropic : Shoot
(b)Positively geotropic : Root
(c)Chemotropic : Pollen tube
(d)Hydrotropic : Flower
Correct Answer: (d)
The correct answer is (c): Chemotropic : Pollen tube. Subject: General Science | Sub-topic: Chemistry - Acids & Bases Note: This answer was determined through AI-based research. Verify against the official answer key when available.