Question Detail
Question
The bending of a plant shoot toward a light source is called _______, while root growth downward in response to gravity is called _______.
Correct Answer
Option A is the correct answer.
Detailed Explanation
The bending of a plant shoot toward a light source is called phototropism, while root growth downward in response to gravity is called geotropism (gravitropism).
Hint
Photo- for light, geo- for gravity.