The Rise

Each and Every organisms can live only for a certain period of time. The period from birth to the natural death of an organism represent its lifespan . Lifespans of organismd are not necessarily co-related with their sizes. (For e.g :- the size of crow and parrot are not very different yet their lifespan shows a wide difference). Whatever be the the lifespan , death of an every organism is a certainty , i.e, no individual is immortal except single - celled organisms . Lifespans of various organisms :- Elephant - 60 to 90 years Dog - 20 to 30 years Butterfly - 1 to 2 weeks Crow - 15 years Parrot - 140 years Cow - 20 to 25 years Horse - 60 years Crocodile - 60 years Fruit fly - 1 month  Tortoise - 100 to 150 years  Rose - 5 to 7 years  Banana Tree - 25 years  Rice Plant - 3 to 4 months  Banyan Tree - 200 to 300 yea rs