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    Introduction to Reproduction MCQ - Practice Questions with Answers

    Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

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    The event of life span in which metabolism slows down is 

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    Introduction to Reproduction and Lifespan
    • Each and every organism can live only for a certain period of time. 
    • The period from birth to the natural death of an organism represents its life span.
    • Whatever be the life span, death of every individual organism is a certainty, i.e., no individual is immortal, except single-celled organisms. 
    • The life spans of organisms are not necessarily correlated with their sizes; the size of crows and parrots are not very different yet their life spans show a wide difference.
    • Similarly, a mango tree has a much shorter life span as compared to a peepal tree. 
    • The life cycle of an organism usually includes four stages:
      • Juvenility
      • Maturity
      • Ageing
      • Death 
    • Reproduction is defined as a biological process in which an organism gives rise to young ones (offspring) similar to itself. 
    • The offspring grow, mature and in turn produce new offspring.
    • Thus, there is a cycle of birth, growth and death. 
    • Reproduction enables the continuity of the species, generation after generation.
       

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