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Question
Look at the image given below and identify the represented structural feature of the ecosystem.
Look at the image given below and identify the represented structural feature of the ecosystem.
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Solution
The correct option is D Stratification
Ecosystem is a functional unit of nature, where living organisms interact among themselves and also with their physical environment.
The interaction of various biotic (plants, animals and decomposers) and abiotic components (climatic and edaphic factors) in the ecosystem result in its physical structure.
Stratification: It is the vertical distribution of different species, occupying different levels in an ecosystem. For example, in a forest, trees occupy the top vertical strata, shrubs occupy the second strata and grasses occupy the bottom layers. In the image given in the question, a forest ecosystem with the well-defined strata’s is given. Hence, the correct answer is option d.
Species composition: Identification and listing of plant and animal species in an ecosystem gives its species composition. Different ecosystems have different species composition which depends on various factors. For example, tropical rain forests have great biodiversity when compared to other ecosystems.
Trophic organisation: The living organisms in an ecosystem obtain their food at different levels known as trophic levels. Producers (green plants) form the first trophic level, herbivores form the second trophic level and carnivores form the third trophic level. Whereas in the image given all are plants, therefore, they belong to the same trophic level (producers).
Food chain is a simple, graphical way of showing a food relationship between organisms in an ecosystem. For example, Grass → Goat → Fox. In the given image, only the first trophic level is shown, i.e., producers.
Ecosystem is a functional unit of nature, where living organisms interact among themselves and also with their physical environment.
The interaction of various biotic (plants, animals and decomposers) and abiotic components (climatic and edaphic factors) in the ecosystem result in its physical structure.
Stratification: It is the vertical distribution of different species, occupying different levels in an ecosystem. For example, in a forest, trees occupy the top vertical strata, shrubs occupy the second strata and grasses occupy the bottom layers. In the image given in the question, a forest ecosystem with the well-defined strata’s is given. Hence, the correct answer is option d.
Species composition: Identification and listing of plant and animal species in an ecosystem gives its species composition. Different ecosystems have different species composition which depends on various factors. For example, tropical rain forests have great biodiversity when compared to other ecosystems.
Trophic organisation: The living organisms in an ecosystem obtain their food at different levels known as trophic levels. Producers (green plants) form the first trophic level, herbivores form the second trophic level and carnivores form the third trophic level. Whereas in the image given all are plants, therefore, they belong to the same trophic level (producers).
Food chain is a simple, graphical way of showing a food relationship between organisms in an ecosystem. For example, Grass → Goat → Fox. In the given image, only the first trophic level is shown, i.e., producers.
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