A) Inner ear
B) Middle ear
C) Optic nerve
D) Skin
Correct Answer: B
Solution :
Fate of the three germ layers are given here under:| Ectoderm | Mesoderm | Endoderm |
| Epidermis and skin derivatives | Dermis | Gut |
| Cutaneous gland | Muscular tissue | Glands of stomach and intestine |
| Nervous ststem (Brain + spinal cord) | Connetive tissue | Tongue |
| Motor and optic nerve | Endoskeleton | Lung, trachea and bronchi |
| Eye (retina lens and cornea) | Vascular system (heart and blood vessel) | Urinary blander |
| Conjuctiva, cliiary and iridial muscle | Kiney | Primordial germ cells |
| Nasal epithelium | Gonads (Reproductive system | Gills |
| Internal ear (membranous labyrinth) | Urinary and genital ducts | Liver |
| Lateral line sense orgen | Coelom and coelomic epithelium | Pancreas |
| Stomodaeum (mouth) | Chorold and sclerotic coat of eye | Thyroid gland |
| Salivary gland | Adrenal cortex | Parathyroid gland |
| Enamel of teeth | Spleen | Thymus |
| Proctodaeum | Notochord | Middle ear |
| Pituitary gland | Parietal and visceral peritoneum | Eustachian tube |
| Pineal body | Mesentron (midgut) | |
| Adrenal medulla | Lining of vagina and urethra | |
| Hypothalamus | Prostate gland |
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