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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS

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Efferent salivary ducts in Periplaneta open into

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Correct option: C

base of hypopharynx

Option C (base of hypopharynx) is correct because the efferent salivary ducts in Periplaneta (cockroach) open into the base of the hypopharynx, which is part of the cockroach's mouthparts.

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Simple epithelium is a tissue in which the cells are In addition to the Malpighian tubules, excretion of the waste products in cockroach occurs by

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:- Read the following 4-statements (i – iv) and accordingly mark the option that has both correct statements.
i) Cardiac fibres are branched with one or more nuclei.
ii) Smooth muscles are unbranched and cylindrical.
iii) Striated muscles can be branched or unbranched.
iv) Involuntary muscles are non-striated. The ciliated columnar epithelial cells in humans are known to occur in The outermost wall of spermatophore of cockroach is composed of the secretions of