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Question
The beak of pigeon is covered with
The beak of pigeon is covered with
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Solution
The correct option is C Rhamphotheca
The outer surface of the beak of a pigeon consists of a thin horny sheath of keratin called the rhamphotheca which can be subdivided into the rhinotheca of the upper mandible and the gnathotheca of the lower mandible. The Malpighian layer of the bird's epidermis helps in the origin of rhamphotheca.So, the correct answer is option B.
The outer surface of the beak of a pigeon consists of a thin horny sheath of keratin called the rhamphotheca which can be subdivided into the rhinotheca of the upper mandible and the gnathotheca of the lower mandible. The Malpighian layer of the bird's epidermis helps in the origin of rhamphotheca.
So, the correct answer is option B.
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