MCQ
Algae differ from Bryophyta in possessing
- ✓Naked sex organs
- BSex organs covered with sterile covering
- CChlorphylls $\alpha$ and $\beta$
- DAerobic respiration
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$R$ : Bark is formed due to the activity of phellogen only.
$(i)$ They are named because of their special function of linking and supporting other tissues/organs of the body.
$(ii)$ They include cartilage, bone, adipose and blood.
$(iii)$ They provide strength, elasticity and flexibility to the tissue.
$(iv)$ They also secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix.
$\begin{array}{|p{0.3\linewidth}|p{0.5\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Schleiden & 1.\,\,Nucleus \\ \hline B.\,\,Schwann & 2.\,\,German\,\,botanist \\ \hline C.\,\,Robert\,\,brown & 3.\,\,Living\,\,cell \\ \hline D.\,\,Leuwen\,\,hoke & 4.\,\,Britain\,\,Zoologist \\ \hline \end{array}$