Question

Question 8: Define (a) Juvenile phase, (b) Reproductive phase, (c) Senescent phase.

Class 12 - Biology - Reproduction in Organisms Page 18

Answer 1

(a) Juvenile phase:

It is the period of growth in an individual organism after its birth and before it reaches reproductive maturity.

(b) Reproductive phase:

It is the period when an individual organism reproduces sexually.

(c) Senescent phase:

It is the period when an organism grows old and loses the ability to reproduce.

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Answer 2

Hey there,

(a) Juvenile phase :-

It is that phase in which the organism can't reproduce sexually. It is also said to be a phase before Growth and Maturity.

(b) Reproductive phase :-

Also known as end of the juvenile phase. This is that phase in which organisms can produce progeny or offsprings.

(c) Senescent phase :-

Also known as end of the reproductive phase. In this phase there is deterioration of the body. Becomes old and finally leads to death of organism.

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