IGCSE O Level Biology Exam MCQs – Practice Test 12 (Chapter 6)
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MCQ 56: Larvae changes into pupa in:
MCQ 57: Ability to withstand fluctuations in salt concentration is more in:
MCQ 58: Both abiotic and biotic factors operating in an environment are called as:
MCQ 59: Cycling of Carbon (C), nitrogen (N2), oxygen (O2) and water (H2O) is brought about by:
MCQ 60: Mosquito egg remain afloat due to:
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