Except these two, all are cell aggregations in frog as far as sensory system is concerned.
A
Eyes & Ears
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B
Tongue & Skin
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C
Eyes & Skin
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D
Ears & Nose
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Solution
The correct option is A
Eyes & Ears
Frog has different types of sense organs, namely organs of touch (sensory papillae), taste (taste buds), smell (nasal epithelium), vision (eyes) and hearing (tympanum with internal ears). Out of these, eyes and internal ears are well-organised structures and the rest are cellular aggregations around nerve endings