{"id":91317,"date":"2025-06-01T10:53:15","date_gmt":"2025-06-01T10:53:15","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91317"},"modified":"2025-06-01T10:53:15","modified_gmt":"2025-06-01T10:53:15","slug":"which-one-of-the-following-is-the-best-description-of-the-term","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/","title":{"rendered":"Which one of the following is the best description of the term"},"content":{"rendered":"

Which one of the following is the best description of the term \u2018ecosystem\u2019?<\/p>\n

[amp_mcq option1=”A community of organisms interacting with one another” option2=”That part of the Earth which is inhabited by living organisms” option3=”A community of organisms together with the environment in which they live” option4=”The flora and fauna of a geographical area” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC IAS – 2015<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C (A community of organisms together with the environment in which they live). This is the standard definition of an ecosystem.
\n<\/section>\n
\n– An ecosystem comprises both biotic (living organisms) and abiotic (physical environment like soil, water, air, sunlight, temperature) components.
\n– The organisms within an ecosystem interact with each other (biotic interactions) and also with their physical environment (biotic-abiotic interactions).
\n– Option A describes only the biotic community.
\n– Option B describes the biosphere or habitable part of the Earth.
\n– Option D describes flora and fauna, which are only parts of the biotic community.
\n<\/section>\n
\nThe term ‘ecosystem’ was coined by A.G. Tansley in 1935. Ecosystems can vary greatly in size, from a small pond to a large forest or ocean. Energy flows through the ecosystem, typically originating from the sun and transferred through trophic levels, while nutrients are cycled within the ecosystem.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the best description of the term \u2018ecosystem\u2019? [amp_mcq option1=”A community of organisms interacting with one another” option2=”That part of the Earth which is inhabited by living organisms” option3=”A community of organisms together with the environment in which they live” option4=”The flora and fauna of a geographical area” correct=”option3″] This … <\/p>\n

Detailed SolutionWhich one of the following is the best description of the term<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1443,1367,1136],"class_list":["post-91317","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1443","tag-ecology","tag-environment-and-ecology","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the best description of the term<\/title>\n<meta name=\"description\" content=\"The correct option is C (A community of organisms together with the environment in which they live). This is the standard definition of an ecosystem. - An ecosystem comprises both biotic (living organisms) and abiotic (physical environment like soil, water, air, sunlight, temperature) components. - The organisms within an ecosystem interact with each other (biotic interactions) and also with their physical environment (biotic-abiotic interactions). - Option A describes only the biotic community. - Option B describes the biosphere or habitable part of the Earth. - Option D describes flora and fauna, which are only parts of the biotic community.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the best description of the term\" \/>\n<meta property=\"og:description\" content=\"The correct option is C (A community of organisms together with the environment in which they live). This is the standard definition of an ecosystem. - An ecosystem comprises both biotic (living organisms) and abiotic (physical environment like soil, water, air, sunlight, temperature) components. - The organisms within an ecosystem interact with each other (biotic interactions) and also with their physical environment (biotic-abiotic interactions). - Option A describes only the biotic community. - Option B describes the biosphere or habitable part of the Earth. - Option D describes flora and fauna, which are only parts of the biotic community.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:53:15+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following is the best description of the term","description":"The correct option is C (A community of organisms together with the environment in which they live). 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This is the standard definition of an ecosystem. - An ecosystem comprises both biotic (living organisms) and abiotic (physical environment like soil, water, air, sunlight, temperature) components. - The organisms within an ecosystem interact with each other (biotic interactions) and also with their physical environment (biotic-abiotic interactions). - Option A describes only the biotic community. - Option B describes the biosphere or habitable part of the Earth. - Option D describes flora and fauna, which are only parts of the biotic community.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:53:15+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-description-of-the-term\/","name":"Which one of the following is the best description of the term","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:53:15+00:00","dateModified":"2025-06-01T10:53:15+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is C (A community of organisms together with the environment in which they live). 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