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| Column $X$ | Column $Y$ |
| $(1)$ Population | $(P)$ Group of closely related species |
| $(2)$ Differentiation | $(Q)$ Result of metabolism |
| $(3)$ Family | $(R)$ Energy available for any system's work |
| $(4)$ Growth | $(S)$ Formed by individual organisms |
| $(5)$ Potential energy | $(T)$ Change in embryonic cells according to their specific functions |
| Column-$I$ (Genus) | Column-$II$ (Family) |
| $i$. $Zea$ | $a$. $Blattidae$ |
| $ii$. $Helianthus$ | $b$. $Poaceae$ |
| $iii$. $Pheretima$ | $c$. $Asteraceae$ |
| $iv$. $Periplaneta$ | $d$. $Megascolecidae$ |
| Column-$I$ | Column-$II$ |
| $(a)$ Growth | $(i)$ The number of individuals of each species remains limited. |
| $(b)$ Development | $(ii)$ New organisms differ from parents and may lead to new species. |
| $(c)$ Death | $(iii)$ Organisms increase in body size after birth. |
| $(d)$ Adaptation | $(iv)$ Organisms adjust to the environment by changing their structure,function,or behavior. |
| $(e)$ Variation | $(v)$ Cells of the zygote undergo changes according to their specific functions. |
| $(vi)$ Organization of membranes and organelles by macromolecules. |
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