Senescent phase of an organism's life span can be recognized by ---------

Options :
  1. slow metabolism
  2. decreased immunity
  3. cessation of reproduction
  4. all of the above
Answer and Explanation :-

Answer: Option 4

Explanation:

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Not all men (and especially the wisest) share the opinion that it is bad for women to be educated. But it is very true that many foolish men have claimed this because it displeased them that women knew more than they did.
-Christine de Pizan The Book of the City of Ladies