| (a)Organism is the smallest unit of
ecological study.Organisation is the arrangement and
coordination of small components into larger components in a hierarchy, where
each level is formed of components of lower level and itself becomes
constituent of still higher levelHierarchy in a organisation from the
level of biomolecules to organismic level is called biological hierarchy or
biological organisation. The hierarchy in the levels of organisation
connected with ecological grouping of organism is called ecological hierarchy
or ecological level of organisationThere are no sharp lines or breeks
in the functional sense amongst various level of ecological hierarchy as the
same individual is a components of population, biological community as well
as ecosystem |