- A$LH$
- B$MH$
- C$TSH$
- ✓$FSH$
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$I.$ Double layered
$II.$ Fluid contained in it reduces the friction on the lung surface
$III.$ Its outer layer is in contact with thoracic wall
$IV.$ Its inner layer is in contact with lungs
$\begin{array}{|p{0.3\linewidth}|p{0.6\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline (1)\,\,Oxytocin & (p)\,\,Stimulates\,\,the\,\,secretion\,\,of\,\,thyroid\,\,hormone \\ \hline (2)\,\,Vasopressin & (q)\,\,Act\,\,on\,\,the\,\,smooth\,\,muscles \\ \hline (3)\,\,FSH\,\,\,\&\,\,androgens & (r)\,\,Stimulates\,\,resorption\,\,of\,\,water \\ \hline (4)\,\,TSH & (s)\,\,Regulate\,\,spermatogenesis \\ \hline \end{array}$

$(a)$ Mosses and Lichens are the firstorganisms to colonise a bare rock
$(b)$ Selaginella is a homosporous pteridophyte
$(c)$ Coralloid roots in Cycas have VA Micorrhizae
$(d)$ Main plant body in bryophytes isgametophytic, whereas in pteridophytes it is sporophytic
$(e)$ In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte