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ECOSYSTEM simplified- Complete Exam Pack, Diagrams (A-Level/ IB Biology Revision Notes)

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Provides an in-depth and complete knowledge for higher secondary graduation students of science and biology for semester as well as competitive exams: Ecosystem, biotic and abiotic components, habitat, niche, producers, consumers, decomposers and detritivores. Colorful diagrams, pictures, graphics and flow charts cover abiotic components as light, temperature, water, air, soil, nutrients. Key words for review/revision prior to tests are food chain, food web, trophic level, energy pyramid and 10% law. Essential for Environmental Science for student of top scores, grades cover Cycles: carbon, nitrogen, water, phosphorus-Biogeochemical cycles. Ecosystem types are terrestrial, aquatic, forest, grassland, desert and marine. Stability and Balance incorporate ecological balance, productivity, carrying capacity, succession and climax community.

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ECOSYSTEM

, ECOLOGY
• It is defined as the study of ecosystem.
• In other words, it is a scientific study of
interactions between living organisms with
non living environment.
• Alexander von Humboldt is widely recognized
as the "father of ecology".

, What is ecosystem ?

An ecosystem is a community of
organisms(biotic components) and their
physical environment(abiotic components)
interacting together. The word ‘Eco’ refers to
‘part of world’ and ‘system’ refer to the
coordination of different units together.

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Edition: 2015 ISBN: 9781785362682 Edition: Unknown

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Uploaded on
February 1, 2026
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2025/2026
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