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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS

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Which of the following cell is rounded and biconcave in shape?

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Correct option: B

RBCs

Option B (RBCs) is correct because red blood cells (RBCs) are distinctively rounded and biconcave in shape, which increases their surface area for gas exchange.

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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}\,\,\,\,\,\,\,}

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