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  Significant Figures /- The calculated values is indicated by mentioning the number of significant figures are meaningful digits which are known with certainty plus one which is estimated or uncertain.

  Join our Telegram Group:- GroveStudies                  Chapter -1   Reproduction in Organisms /- Birth <--  Life span --  Natural death of an organisms . No individual is immortal except single called organisms.  Life span of important organisms /-    Butterfly -- 1 to 2 weeks Fruit fly -- 30 days Banana tree -- 30 years Banyan tree --  300 years Crocodile -- 60 years Organisms habitat, its internal physiology. Responsible for how it reduces. Reproduction --  Sexual / 2 parents, gametes formation - gametes fusion. Asexual / 1 parents, with / without gametes formation. Asexual reproduction /-  Common among unicellular organisms and in plants and animal with simple organisms. Offsprings are known as clones (morphology and genetically similar). Binary fission :-  Amoeba, Paramecium. Budding :-    Yeast. In fungi and similar plants a sexual reproduction structure at present. Zoospores :-                          Most common , Motile. Eg, Chlamydomonas. Conidia :-. Penicillium Buds