MCQ
Open vascular system is found in
- AMan
- BFish
- ✓Prawn
- DSnake
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$\begin{array}{|p{0.6\linewidth}|p{0.3\linewidth}|} \hline Column\,\,I & Column\,\,II \\ \hline a.\,\,Cellular\,\,level\,\,of\,\,organisation & 1.\,\,Cnidarians \\ \hline b.\,\,Organ\,\,level\,\,of\,\,organisation & 2.\,\,Platyhelminthes \\ \hline c.\,\,Organ\,\,system\,\,level\,\,of\,\,organisation & 3.\,\,Chordates \\ \hline d.\,\,Tissue\,\,level\,\,organisation & 4.\,\,Porifera \\ \hline \end{array}$
$a\ \ b\ \ c\ \ d$
| Column $I$ | Column $II$ | ||
| $A.$ | Fast muscle fibres | $i.$ | Myoglobin |
| $B.$ | Slow muscle fibres | $ii.$ | Lactic acid |
| $C.$ | Actin filament | $iii.$ | Contractile unit |
| $D.$ | Sarcomere | $iv.$ | $I-$band |