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$I.$ $O_{2}$ helps in releasing metabolic energy, which is essential for growth
$II.$ Nutrients are required by plants for the synthesis of protoplasm
$III.$ Change in temperature could be the detrimental for the survival of an organism
$IV$. Light and gravity don't affect the stages of growth
Choose the correct option
$\begin{array}{|p{0.3\linewidth}|p{0.5\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline 1.\,\,Leptotene & p.\,\,Homologous\,\,chromosomes\,\,are\,\,separated \\ \hline 2.\,\,Diakinesis & q.\,\,Nucleolus\,\,reappear \\ \hline 3.\,\,Pachytene & r.\,\,Chromosome\,\,can\,\,observed\,\,in\,\,microscope \\ \hline 4.\,\,Anaphase\,\,-I & s.\,\,Nucleolus\,\,disappear \\ \hline & t.\,\,Crossing\,\,over \\ \hline \end{array}$
class - Character