{"id":90088,"date":"2025-06-01T10:20:33","date_gmt":"2025-06-01T10:20:33","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90088"},"modified":"2025-06-01T10:20:33","modified_gmt":"2025-06-01T10:20:33","slug":"consider-the-following-statements-statement-i-chameleon-changes-it","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/","title":{"rendered":"Consider the following statements:\n  Statement-I: Chameleon changes it"},"content":{"rendered":"<p>Consider the following statements:<\/p>\n<ul>\n<li>Statement-I: Chameleon changes its skin colour to match with the colour of the surroundings<\/li>\n<li>Statement-II: The skin of chameleon emits light of the colour of the surrounding through fluorescence<\/li>\n<\/ul>\n<p>Which one of the following is correct in respect of the above statements and the code?<\/p>\n<p>[amp_mcq option1=&#8221;Both the statements are individually true and Statement II is the correct explanation of Statement I&#8221; option2=&#8221;Both the statements are individually true but Statement II is NOT the correct explanation of Statement I&#8221; option3=&#8221;Statement I is true but Statement II is false&#8221; option4=&#8221;Statement I is false but Statement II is true&#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 CAPF &#8211; 2017<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-capf-2017.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-capf-2017\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores).<\/section>\n<section id=\"pyq-key-points\">Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.<\/section>\n<section id=\"pyq-additional-information\">The colour change in chameleons involves manipulating layers of nanocrystals within iridophore cells. By relaxing or exciting their skin, they can change the spacing between these crystals, which in turn reflects different wavelengths of light, producing structural colours like blue and green, which combine with pigment colours (like yellow from xanthophores) to create the observed spectrum.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Consider the following statements: Statement-I: Chameleon changes its skin colour to match with the colour of the surroundings Statement-II: The skin of chameleon emits light of the colour of the surrounding through fluorescence Which one of the following is correct in respect of the above statements and the code? [amp_mcq option1=&#8221;Both the statements are individually &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Consider the following statements:\n  Statement-I: Chameleon changes it\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/#more-90088\">Detailed Solution<span class=\"screen-reader-text\">Consider the following statements:<br \/>\n  Statement-I: Chameleon changes it<\/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":[1085],"tags":[1101,1117,1115],"class_list":["post-90088","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1101","tag-biology","tag-miscellaneous","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>Consider the following statements:  Statement-I: Chameleon changes it<\/title>\n<meta name=\"description\" content=\"Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores). Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.\" \/>\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\/consider-the-following-statements-statement-i-chameleon-changes-it\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Consider the following statements:  Statement-I: Chameleon changes it\" \/>\n<meta property=\"og:description\" content=\"Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores). Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:20:33+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":"Consider the following statements:  Statement-I: Chameleon changes it","description":"Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores). Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.","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\/consider-the-following-statements-statement-i-chameleon-changes-it\/","og_locale":"en_US","og_type":"article","og_title":"Consider the following statements:  Statement-I: Chameleon changes it","og_description":"Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores). Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:20:33+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\/consider-the-following-statements-statement-i-chameleon-changes-it\/","url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/","name":"Consider the following statements: Statement-I: Chameleon changes it","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:20:33+00:00","dateModified":"2025-06-01T10:20:33+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement I is true; chameleons are well-known for their ability to change skin colour, which helps them in camouflage, communication, and thermoregulation, adapting to their surroundings and physiological state. Statement II is false; chameleons change colour not by emitting light through fluorescence but by altering the structural properties of specialized cells called iridophores in their skin, which control how light is reflected, combined with the action of pigment-containing cells (chromatophores). Chameleons change colour using structural colouration and pigments, not by emitting light through fluorescence.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-statement-i-chameleon-changes-it\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CAPF","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-capf\/"},{"@type":"ListItem","position":3,"name":"Consider the following statements: Statement-I: Chameleon changes it"}]},{"@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\/90088","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=90088"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/90088\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=90088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=90088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=90088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}