IGCSE O Level Biology Certification MCQs – Practice Test 3 (Chapter 6)

Ecology: O level Biology Quiz with Answers PDF Download – Test 3

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Ecology O level Biology Exam Questions and Answers PDF Download: Test 3

MCQ 11: Sea water is alkaline with a pH of:

less than 8
8
9
10

MCQ 12: Interaction of living things and non-living things is known as:

ecological niche
ecological community
ecosystem
ecology

MCQ 13: Type of energy trapped in dead bodies is in form of:

physical energy
radiant energy
chemical energy
biochemical energy

MCQ 14: Energy pyramid is broader at base and narrower at apex, as the energy:

increases along the food chain
decreases along the food chain
remains same along the food chain
may increase or decrease along the food chain

MCQ 15: Seldom fatal disease is known as:

malignant
benign
tertian malaria
anemia

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