Ecosystems - Structure, Functions, and Services
ICSE · Class 9 · Environmental Science
Most important questions from Ecosystems - Structure, Functions, and Services for ICSE Class 9 Environmental Science board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
Which sequence shows the correct ecological hierarchy from smaller to larger level?
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Organism, population, community, ecosystem, biome, biosphere
Ecological hierarchy arranges living systems from the smallest unit, organism, to the largest unit, biosphere.
Which branch of ecology deals with an individual organism or a single species and its environment?
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Autecology
Autecology deals with the relationship of an individual organism or a single species with its environment.
Which branch of ecology studies groups of organisms, such as communities and ecosystems?
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Synecology
Synecology studies groups of organisms, such as communities and ecosystems, and their interactions with the environment.
Which ecosystems are broadly classified into terrestrial and aquatic ecosystems?
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Ecosystems
Ecosystems are broadly classified into terrestrial and aquatic ecosystems.
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