{"id":91092,"date":"2025-06-01T10:45:57","date_gmt":"2025-06-01T10:45:57","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91092"},"modified":"2025-06-01T10:45:57","modified_gmt":"2025-06-01T10:45:57","slug":"which-one-of-the-following-terms-describes-not-only-the-physical-space","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-terms-describes-not-only-the-physical-space\/","title":{"rendered":"Which one of the following terms describes not only the physical space"},"content":{"rendered":"

Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?<\/p>\n

[amp_mcq option1=”Ecotone” option2=”Ecological niche” option3=”Habitat” option4=”Home range” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC IAS – 2013<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe term that describes both the physical space occupied by an organism and its functional role in the community is “Ecological niche”.
\n<\/section>\n
\n– **Habitat:** Refers primarily to the physical environment or location where an organism lives.
\n– **Ecotone:** Is a transition zone between two different ecosystems.
\n– **Home range:** Is the area an animal traverses in its activities, but it doesn’t define its functional role.
\n– **Ecological niche:** Encompasses not just the physical space (like habitat) but also the organism’s role, including how it interacts with other organisms (predators, prey, competitors), what it consumes, how it reproduces, and how it is affected by its environment. It is often described as the organism’s “profession” or “address + profession” within the ecosystem.
\n<\/section>\n
\nThe concept of the ecological niche was first described by Joseph Grinnell (focused on habitat) and later refined by Charles Elton (focused on the functional role) and G. Evelyn Hutchinson (mathematical definition of the ‘n-dimensional hypervolume’). The principle of competitive exclusion states that no two species can occupy exactly the same niche in the same habitat for a prolonged period.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms? [amp_mcq option1=”Ecotone” option2=”Ecological niche” option3=”Habitat” option4=”Home range” correct=”option2″] This question was previously asked in UPSC IAS – 2013 Download PDFAttempt Online The term that describes both the physical space … <\/p>\n

Detailed SolutionWhich one of the following terms describes not only the physical space<\/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":[1467,1367,1136],"class_list":["post-91092","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1467","tag-ecology","tag-environment-and-ecology","no-featured-image-padding"],"yoast_head":"\nWhich one of the following terms describes not only the physical space<\/title>\n<meta name=\"description\" content=\"The term that describes both the physical space occupied by an organism and its functional role in the community is "Ecological niche". - **Habitat:** Refers primarily to the physical environment or location where an organism lives. - **Ecotone:** Is a transition zone between two different ecosystems. - **Home range:** Is the area an animal traverses in its activities, but it doesn't define its functional role. - **Ecological niche:** Encompasses not just the physical space (like habitat) but also the organism's role, including how it interacts with other organisms (predators, prey, competitors), what it consumes, how it reproduces, and how it is affected by its environment. 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