Define Senescent phase

Transitions between the juvenile, reproductive and senescent phases in both plants and animals is maintained by

Define Juvenile phase

What are the three major phases in the cycle of an organism? Define each phase.

a. What are the three clear cut phases in the life of annual and biennial type of plants? b. Why is it difficult to define these phases in perennial species of plants?

Complete the series. Secretory phase-progesterone,........ Oestrogen

Define Reproductive phase