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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS

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The compound eyes of cockroaches consists of about

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Correct option: B

2000 hexagonal ommatidia

Option B (2000 hexagonal ommatidia) is correct because the compound eyes of cockroaches consist of approximately 2000 hexagonal ommatidia, which are the individual visual units.

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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

\underline {\,\,\,\,\,\mathrm{A}\,\,\,\,\,\,\,}

epithelium is involved in secretion and absorption and is found in

\underline {\,\,\,\,\,\mathrm{B}\,\,\,\,\,\,\,}

:- 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