MCQ
The human neural system comprises
- A$PNS$ only
- B$CNS$ only
- ✓Both $(a)$ and $(b)$
- DNone of these
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$\begin{array}{|l|l|} \hline Column\;-I & Column\;-II \\ \hline 1.\;Metaphase & p.\;Chromosomal\;material\;condensed \\ \hline 2.\;Prophase & q.\;Nucleolus\;reform \\ \hline 3.\;Anaphase & r.\;Spindle\;fibre\;attach\;to\;kinetochores \\ \hline 4.\;Telophase & s.\;Chromatids\;move\;to\;opposite\;poles \\ \hline \end{array}$
$I.$ partial pressure of $O_{2}$
$II.$ partial pressure of $CO _{2}$
$III.$ hydrogen ion concentration
$IV.$ temperature
Choose the correct option