{"id":93285,"date":"2025-06-01T11:46:33","date_gmt":"2025-06-01T11:46:33","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=93285"},"modified":"2025-06-01T11:46:33","modified_gmt":"2025-06-01T11:46:33","slug":"which-one-of-the-following-pairs-correctly-represents-an-example-of-an","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/","title":{"rendered":"Which one of the following pairs correctly represents an example of an"},"content":{"rendered":"<p>Which one of the following pairs correctly represents an example of analogous organs ?<\/p>\n<p>[amp_mcq option1=&#8221;Forelimb of horse and human arm&#8221; option2=&#8221;Human hands and wings of birds&#8221; option3=&#8221;Wings of birds and wings of insects&#8221; option4=&#8221;Flipper of whale and forelimb of frog&#8221; correct=&#8221;option3&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC CISF-AC-EXE &#8211; 2023<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cisf-ac-exe-2023.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cisf-ac-exe-2023\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nAnalogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\n&#8211; Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures.<br \/>\n&#8211; They have similar functions but different basic structures and origins.<br \/>\n&#8211; Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nExamples of homologous organs include the forelimbs of vertebrates (human arm, whale flipper, bat wing, horse leg), which share a common bone structure despite different functions. Examples of analogous organs include the eye of a squid and the eye of a vertebrate, or the spines of a cactus and the spines of a euphorbia.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which one of the following pairs correctly represents an example of analogous organs ? [amp_mcq option1=&#8221;Forelimb of horse and human arm&#8221; option2=&#8221;Human hands and wings of birds&#8221; option3=&#8221;Wings of birds and wings of insects&#8221; option4=&#8221;Flipper of whale and forelimb of frog&#8221; correct=&#8221;option3&#8243;] This question was previously asked in UPSC CISF-AC-EXE &#8211; 2023 Download PDFAttempt Online &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which one of the following pairs correctly represents an example of an\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/#more-93285\">Detailed Solution<span class=\"screen-reader-text\">Which one of the following pairs correctly represents an example of an<\/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":[1089],"tags":[1105,1117,1412],"class_list":["post-93285","post","type-post","status-publish","format-standard","hentry","category-upsc-cisf-ac-exe","tag-1105","tag-biology","tag-evolution-of-life","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which one of the following pairs correctly represents an example of an<\/title>\n<meta name=\"description\" content=\"Analogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs. - Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures. - They have similar functions but different basic structures and origins. - Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.\" \/>\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-pairs-correctly-represents-an-example-of-an\/\" \/>\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 pairs correctly represents an example of an\" \/>\n<meta property=\"og:description\" content=\"Analogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs. - Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures. - They have similar functions but different basic structures and origins. - Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:46:33+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 pairs correctly represents an example of an","description":"Analogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs. - Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures. - They have similar functions but different basic structures and origins. - Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following pairs correctly represents an example of an","og_description":"Analogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs. - Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures. - They have similar functions but different basic structures and origins. - Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:46:33+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-pairs-correctly-represents-an-example-of-an\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/","name":"Which one of the following pairs correctly represents an example of an","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:46:33+00:00","dateModified":"2025-06-01T11:46:33+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Analogous organs are organs that perform similar functions but have different evolutionary origins and structures. Wings of birds and wings of insects both serve the function of flight, but their underlying structures are fundamentally different. Bird wings are modified forelimbs with bones covered by feathers, while insect wings are chitinous extensions of the body wall, supported by veins. This difference in structure despite similar function makes them analogous organs. - Analogous organs arise from convergent evolution, where unrelated organisms evolve similar traits due to similar environmental pressures. - They have similar functions but different basic structures and origins. - Homologous organs, in contrast, have similar structures and origins (due to common ancestry) but may have different functions.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-correctly-represents-an-example-of-an\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CISF-AC-EXE","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cisf-ac-exe\/"},{"@type":"ListItem","position":3,"name":"Which one of the following pairs correctly represents an example of an"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/93285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=93285"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/93285\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=93285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=93285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=93285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}