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In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue.
  • a)
    (i)- upper lip; (ii)- maxilla
  • b)
    (i)- upper lip; (ii)- hypopharynx
  • c)
    (i)- lower lip; (ii)- maxilla
  • d)
    (i)- lower lip; (ii)- hypopharynx
Correct answer is option 'D'. Can you explain this answer?
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In the mouth parts of a cockroach, the labium forms _______ (i) while ...
The mouth parts of cockroach are of biting and chewing type consisting of labrum (upper lip), a pair of mandibles, a pair of maxillae and a labium (lower lip). Within the oral cavity enclosed by the mouthparts, lies a median flexible lobe called hypopharynx (tongue).
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In the mouth parts of a cockroach, the labium forms _______ (i) while ...
The mouthparts of a cockroach consist of several structures that work together to facilitate feeding. One of these structures is the labium, which forms the lower lip of the cockroach's mouth. Another structure involved in feeding is the hypopharynx, which acts as a tongue-like organ.

The labium is a broad, flat structure located on the ventral side of the cockroach's head. It is composed of two lobes that are fused together, forming a protective covering for the mouthparts. The labium plays a role in manipulating and guiding food towards the mouth.

On the other hand, the hypopharynx is a slender, elongated structure located in the midline of the labium. It acts as a tongue or a food channel, helping to guide food into the mouth. The hypopharynx is covered with tiny hairs that aid in tasting and manipulation of food particles.

Therefore, the correct answer is option D, with the labium forming the lower lip (i) and the hypopharynx acting as a tongue (ii).

In summary:
(i) Labium: The labium forms the lower lip of the cockroach's mouth and is involved in manipulating and guiding food towards the mouth.
(ii) Hypopharynx: The hypopharynx acts as a tongue-like organ and helps to guide food into the mouth, aided by tiny hairs that aid in tasting and manipulating food particles.
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In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue.a)(i)- upper lip; (ii)- maxillab)(i)- upper lip; (ii)- hypopharynxc)(i)- lower lip; (ii)- maxillad)(i)- lower lip; (ii)- hypopharynxCorrect answer is option 'D'. Can you explain this answer?
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In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue.a)(i)- upper lip; (ii)- maxillab)(i)- upper lip; (ii)- hypopharynxc)(i)- lower lip; (ii)- maxillad)(i)- lower lip; (ii)- hypopharynxCorrect answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue.a)(i)- upper lip; (ii)- maxillab)(i)- upper lip; (ii)- hypopharynxc)(i)- lower lip; (ii)- maxillad)(i)- lower lip; (ii)- hypopharynxCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue.a)(i)- upper lip; (ii)- maxillab)(i)- upper lip; (ii)- hypopharynxc)(i)- lower lip; (ii)- maxillad)(i)- lower lip; (ii)- hypopharynxCorrect answer is option 'D'. Can you explain this answer?.
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