3
Question
Select the option in which the various levels of ecological organisation are arranged in a correct sequence
Select the option in which the various levels of ecological organisation are arranged in a correct sequence
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Solution
The correct option is B Biosphere-Biome-Ecosystem-Community-Population-Organism
Study of interactions/interrelationships between the organisms and their environment is called ecology.
Ecology can be studied at various levels in order to understand the interaction of organisms and their environment. The order of these levels, starting with the simplest and approaching towards the most complex, is as follows:
An organism (individual) being the foremost or basic unit in ecology, followed by population, community, ecosystem, biome and biosphere.
- Individual organism is the basic unit of ecology.
- Group of individuals of the same species inhabiting a given area form a population.
- Assemblage of populations of different species is called community.
- When multiple biotic communities (plants, animals and microbes) interact with each other and with their physical environment, they form an ecosystem.
- A biome is a collection of flora and fauna present in a habitat which are adapted to a specific climate. There are different types of biomes present on the Earth: tundra, desert, temperate forest, etc.
- All biomes together (aquatic and terrestrial biomes) on the Earth form a biosphere.
Hence, Biosphere-Biome-Ecosystem-Community-Population-organism is the correct descending sequence of ecological hierarchy.
Study of interactions/interrelationships between the organisms and their environment is called ecology.
Ecology can be studied at various levels in order to understand the interaction of organisms and their environment. The order of these levels, starting with the simplest and approaching towards the most complex, is as follows:
An organism (individual) being the foremost or basic unit in ecology, followed by population, community, ecosystem, biome and biosphere.
- Individual organism is the basic unit of ecology.
- Group of individuals of the same species inhabiting a given area form a population.
- Assemblage of populations of different species is called community.
- When multiple biotic communities (plants, animals and microbes) interact with each other and with their physical environment, they form an ecosystem.
- A biome is a collection of flora and fauna present in a habitat which are adapted to a specific climate. There are different types of biomes present on the Earth: tundra, desert, temperate forest, etc.
- All biomes together (aquatic and terrestrial biomes) on the Earth form a biosphere.
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