MCQ
The regulatory centres for respiration are located in:
- ADiencephalon and pons
- BPons and cerebellum dows
- CMedulla oblongata and pons
- DCerebellum and medulla oblongata
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$(i)$ Leucocytes disintegrate in the spleen and liver.
$(ii)$ $RBC, WBC$ and blood platelets are produced by bone marrow.
$(iii)$ Neutrophils bring about destruction and detoxification of toxins of protein origin.
$(iv)$ The important function of lymphocytes is to produce antibodies
$I.$ Diploblastic
$II.$ Acoelomate
$III.$ Radial symmetry
| List $I$ (Sub Phases of Prophase $I$) | List $II$ |
| $A.$ Diakinesis | $I.$ Synaptonemal complex formation |
| $B.$ Pachytene | $II.$ Completion of terminalisation of chiasmata |
| $C.$ Zygotene | $III.$ Chromosomes look like thin threads |
| $C.$ Leptotene | $IV.$ Appearance of recombination nodules |
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