- ACalcified
- BHyaline
- CElastic
- DFibrous
Explanation:
Hyaline cartilage is the most widespread and its the type that makes up the embryonic skeleton. It persists in human adults at the ends of the bones in free-moving joints as articular cartilage at the end of the ribs, and in the nose.
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| Endocrine | Hormone |
Deficiency Disorder |
| $I.$Neurohypophysis | Vasopressin | Diabetes insipidus |
| $II.$Adrenal Cortex | Corticosteroids | Addison's disease |
| $III.$Parathyroid glands | Parathormone | Myxoedema |
| $IV.$Thyroid glans | Calcitonin | Acromegaly |
$II.$ Abscisic acid .....$B$..... the stomata.
Choose the correct option and fill in the blanks.
$(a)$ secretion of secondary metabolities and their deposition in the lumen of vessels.
$(b)$ deposition of organic compounds like tannins and resins in the central layers of stem.
$(c)$ deposition of suberin and aromatic substances in the outer layer of stem.
$(d)$ deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem.
$(e)$ presence of parenchyma cells, functionally active xylem elements and essential oils.
Choose the correct answer from the options given below: