The deteriorative processes in plants that naturally terminate their functional life are collectively called

Which one of the following plants does not show plasticity?

Define/Explain: Senescence/Ageing.

Reduction in vascular tissue,mechanical tissue and cuticle is characteristic of

Assertion: Senescence is the time when age-associated defects are manifested.
Reason: Certain genes may be undergoing sequential switching on and off during one's life.

Identify the factors affecting development in plants.