An organism is any living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult.

The natural environment or natural world encompasses all biotic and abiotic things occurring naturally, meaning in this case not artificial. The term is most often applied to Earth or some parts of Earth.

Biotic material or biological derived material is any material that originates from living organisms. Most such materials contain carbon and are capable of decay.

In ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin biology as a whole.

A nutrient cycle is the movement and exchange of inorganic and organic matter back into the production of matter. Energy flow is a unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic.

Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the capacity to do work and in the form of heat and light.

An environmental factor, ecological factor or eco factor is any factor, abiotic or biotic, that influences living organisms. Abiotic factors include ambient temperature, amount of sunlight, air, soil, water and pH of the water soil in which an organism lives.

Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.

Environment & Ecology

Ecosystem

Community of living organisms together with the nonliving components of their environment

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Overview

An ecosystem is a system formed by organisms in interaction with their environment, where the biotic and abiotic components are linked together through nutrient cycles and energy flows.

Source: Wikipedia — Ecosystem (CC BY-SA)

Key concepts

How Ecosystem connects to the ideas, people and events around it.

Organism
An organism is any living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult.
Natural environment
The natural environment or natural world encompasses all biotic and abiotic things occurring naturally, meaning in this case not artificial. The term is most often applied to Earth or some parts of Earth.
Biotic material
Biotic material or biological derived material is any material that originates from living organisms. Most such materials contain carbon and are capable of decay.
Abiotic component
In ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin biology as a whole.
Nutrient cycle
A nutrient cycle is the movement and exchange of inorganic and organic matter back into the production of matter. Energy flow is a unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic.
Energy
Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the capacity to do work and in the form of heat and light.
Environmental factor
An environmental factor, ecological factor or eco factor is any factor, abiotic or biotic, that influences living organisms. Abiotic factors include ambient temperature, amount of sunlight, air, soil, water and pH of the water soil in which an organism lives.
Climate
Climate is the long-term weather pattern in a region, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.

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Questions about Ecosystem

What is Ecosystem?

An ecosystem is a system formed by organisms in interaction with their environment, where the biotic and abiotic components are linked together through nutrient cycles and energy flows.

What are the key concepts related to Ecosystem?

The main concepts connected to Ecosystem include Organism, Natural environment, Biotic material, Abiotic component, Nutrient cycle, Energy, Environmental factor, Climate. Each is linked on the map above with its own summary.

Which exams cover Ecosystem?

Ecosystem is part of Environment & Ecology, which appears in the syllabus of UPSC CSE, UPSC CAPF, SSC CGL, SSC CHSL, SSC MTS, SSC GD and 43 more exams.