Classification of Living Organisms XI -4
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Efficiency to maintain heredity and variation
In all living organisms nucleic acid DNA molecule is responsible for the inheritance properties. Which has complex coded language for internal reactions   and   properties,   which   is   known   as Gene. In one species differences occur in living organisms in own surronding that is   called variation. These type of variation occur in specific species characters after the adaptation. Afterwards speciation occurs.
Properties of tissues are based on .......... *
(40)   Properties of cell are ........... *
(41)  Which molecule is inherited by the next progeny produced by parents ? *
(42)  What is unit of Inheritance ? *
We see around us, we find various living organisms. This property is known as ............ *
(44)  Which process is adopted by the living organisms to their nature to get maximum utilization from it ? *
(45)  Those organisms who have efficient variations to use environment are known as ........... *
(46)  What happens when variations increases in such a way that organisms differ from their original parental characters ? *
(47) What is responsible for formation of new species ? *
(48)  For which process DNA is responsible in higher classes of organisms ? *
Organisation
 are various layers of organisation in living organisms. Which is constructed from atoms to living organisms and living organisms to biosphere.
(49) What will be formed by association of organelles ? *
(50)  Organisms of a same species constitute ............ *
(51)  What is formed by interactions between biotic community and environment ? *
(52) Select the correct sequence. *
(53) How ecosystem are structurised ? *
(54)  What organises to form a biospheres ? *
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