O Level Biology MCQs – Certification Test 590

Mammalian Skin MCQs (Question 590) – App & e-Book Download

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MCQ 590: Secretion of urea in sweat makes skin a:

respiratory organ
breathing organ
excretory organ
egestion organ

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Mammalian Skin MCQs App & e-Book – O Level Biology Learning Guide

Central Nervous System Test 601

Deforestation Air and Water Pollution Test 602

Mouth and Buccal Cavity Test 603

Dormancy and Seed Germination Test 604

Parasitism and Malarial Pathogen Test 605

Pollution and Inorganic Wastes as Cause Test 606

Biology Subjective Test Test 607

Voluntary and Reflex Actions Test 608

Parasite Diseases Test 609

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