IGCSE O Level Biology MCQs - Chapter 6

Ecology: O level Biology Multiple Choice Questions (MCQ) PDF - 22

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The MCQ: In an ecosystem, Pneumatophores grow; "Ecology O level Biology" App Download Android & iOS (Free) with answers downward in soil, downward in water, upward in water and upward in soil to learn online IGCSE courses. Practice physical environment: water quiz questions, download Apple Book (Free Sample) for colleges that offer certificate programs.

Ecology O level Biology Questions & Answers PDF Download: MCQ Quiz 22

MCQ 106: In an ecosystem, Pneumatophores grow

downward in water
downward in soil
upward in water
upward in soil

MCQ 107: Glucose (C₆H₁₂O₆) is formed during photosynthesis, by

getting water through roots
carbon dioxide entering through stomata
minerals obtained through fertilizers
oxygen being used in respiration

MCQ 108: Along the food chain, the total energy level

increases progressively
decreases progressively
increases aggressively
decreases aggressively

MCQ 109: In marram grass, water loss is reduced through

fewer leaves
enlarged stomata
stomata covered by tiny hairs
lenticels

MCQ 110: If an organism of one trophic level is a parasite, the pyramid number gets

higher
inverted
lower
infected

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