Question

Clear cut vegetative, reproductive and senescent phases cannot be observed in

• A. Annual plants
• B. Perennial plants
• C. Biennial plants
• D. Ephemeral plants

Answer 1

The correct option is B Perennial plants

Perennials live for many years, unlike annuals and biennials which complete their life cycle in one and two years, respectively. Therefore perennials have different flowering periods like some flower after every 12 years, some flower after 50 years. So, we cannot distinguish between the juvenile, reproductive and senescent phases in these plants. Annuals and biennial plants exhibit clear-cut vegetative, reproductive and senescent phases. In perennials, these phases cannot be defined clearly.

So, the correct option is 'Perennial plants'.