MCQ
In gymnosperms, the ovule is naked because
- ✓Ovary wall is absent
- BInteguments are absent
- CPerianth is absent
- DNucellus is absent
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$(I)$ Compound epithelium is made of multi layered of cells.
$(II)$ Limited role in secretion and absorption.
$(III)$ To provide protection against chemical and mechanical stresses.
$(IV)$ It present in $PCT$.
$R$ : In protein, only right handed helices are observed.