O Level Biology MCQs – Certification Test 1654

Ecology and Environment MCQs (Question 1654) – Learning App & e-Book Download

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MCQ 1654: Due to osmotic problems in freshwater bony fish, kidneys have to:

produce concentrated urine
reabsorb water
produce dilute urine
release water

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O Level Biology MCQs App & e-Book – Ecology & Environment Study Material

Pollution and Sewage as Cause Test 1665

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Mouth and Buccal Cavity Test 1667

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Cell Structure Test 1672

Insect Pollination Test 1673

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