Ecosystems - Structure, Functions, and Services — Chapter Summary
ICSE · Class 9 · Environmental Science
Summary of Ecosystems - Structure, Functions, and Services for ICSE Class 9 Environmental Science. Part of the ICSE Class 9 Environmental Science syllabus.
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Overview
Ecology is the study of interactions between living organisms and their physical environment, and the interdependence among them that maintains ecological balance. Ecosystems are functional units where living and non-living components interact to support life. They range from small ponds to large oc
Key Concepts
Ecology is the branch of science
Ecology is the branch of science studying interactions between living organisms and their physical environment. Autecology deals with an individual or
Living systems are arranged from organism
Living systems are arranged from organism, species, population, community, ecosystem, biome, to biosphere. This shows increasing levels of organisatio
Habitat is the natural place where
Habitat is the natural place where an organism lives and gets food, water, shelter, and suitable climate. Ecological niche is the functional role of t
Ecosystem threats are long
Ecosystem threats are long-term pressures that cause permanent damage to ecosystems and biodiversity. Major threats include habitat destruction, over-
Forests are dominated by trees
Forests are dominated by trees and are classified into tropical forests, temperate forests, and taiga forests. Tropical forests are near the equator w
Learning Objectives
- Understand the meaning of ecology and its main branches: autecology and synecology.
- Describe the ecological hierarchy from organism to biosphere.
- Differentiate between habitat and ecological niche.
- Identify major ecosystem threats and disturbances.
- Recognise the main types of terrestrial and aquatic ecosystems.
Frequently Asked Questions
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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