Question

Define Juvenile phase

Answer 1

Juvenile phase:
It is the period of growth in an individual organism after its birth and before it reaches reproductive maturity. It is also called vegetative phase in plants.

Reproductive phase is a period during which an organism is sexually mature and can produce gametes that fuse to form zygotes and then into organisms. In higher plants, this phase is marked by the production of flowers

Senescent phase is the period from the end of the reproduction phase till death. It is marked by some of the changes e.g.slower metabolism, break down of proteins, immobilisation of nutrients, etc. In plants, leaves become yellow and fall off.