alleryDarwin and his son saw canary grass coleoptiles bend towards light. This response is:
APhotoperiodism
BVernalisation
CAbscission
DPhototropism
Answer & Solution
Correct answer: D. Phototropism
1. The coleoptile grew towards the light source.
2. Growth towards light has a name.
3. It is phototropism.
_Source: syllabus Biology, Chapter 15, Plant Growth and Development._
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