{"id":91219,"date":"2025-06-01T10:50:17","date_gmt":"2025-06-01T10:50:17","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91219"},"modified":"2025-06-01T10:50:17","modified_gmt":"2025-06-01T10:50:17","slug":"which-one-of-the-following-is-the-correct-sequence-of-a-food-chain","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/","title":{"rendered":"Which one of the following is the correct sequence of a food chain?"},"content":{"rendered":"

Which one of the following is the correct sequence of a food chain?<\/p>\n

[amp_mcq option1=”Diatoms-Crustaceans-Herrings” option2=”Crustaceans-Diatoms-Herrings” option3=”Diatoms-Herrings-Crustaceans” option4=”Crustaceans-Herrings-Diatoms” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC IAS – 2014<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nIn a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings.
\n<\/section>\n
\n– Food chains illustrate the flow of energy through an ecosystem.
\n– The sequence starts with producers, followed by consumers at different trophic levels.
\n– Diatoms (phytoplankton) are producers.
\n– Crustaceans (zooplankton) are primary consumers.
\n– Herrings (fish) are secondary consumers.
\n<\/section>\n
\nOther organisms might be involved in this food web, and herrings can also consume small fish, placing them at a higher trophic level in different food chains. However, the sequence provided in option A represents a valid and common food chain pathway.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the correct sequence of a food chain? [amp_mcq option1=”Diatoms-Crustaceans-Herrings” option2=”Crustaceans-Diatoms-Herrings” option3=”Diatoms-Herrings-Crustaceans” option4=”Crustaceans-Herrings-Diatoms” correct=”option1″] This question was previously asked in UPSC IAS – 2014 Download PDFAttempt Online In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting … <\/p>\n

Detailed SolutionWhich one of the following is the correct sequence of a food chain?<\/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":[1468,1117,1115],"class_list":["post-91219","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1468","tag-biology","tag-miscellaneous","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the correct sequence of a food chain?<\/title>\n<meta name=\"description\" content=\"In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings. - Food chains illustrate the flow of energy through an ecosystem. - The sequence starts with producers, followed by consumers at different trophic levels. - Diatoms (phytoplankton) are producers. - Crustaceans (zooplankton) are primary consumers. - Herrings (fish) are secondary consumers.\" \/>\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-correct-sequence-of-a-food-chain\/\" \/>\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 correct sequence of a food chain?\" \/>\n<meta property=\"og:description\" content=\"In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings. - Food chains illustrate the flow of energy through an ecosystem. - The sequence starts with producers, followed by consumers at different trophic levels. - Diatoms (phytoplankton) are producers. - Crustaceans (zooplankton) are primary consumers. - Herrings (fish) are secondary consumers.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:50:17+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 correct sequence of a food chain?","description":"In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings. - Food chains illustrate the flow of energy through an ecosystem. - The sequence starts with producers, followed by consumers at different trophic levels. - Diatoms (phytoplankton) are producers. - Crustaceans (zooplankton) are primary consumers. - Herrings (fish) are secondary consumers.","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-is-the-correct-sequence-of-a-food-chain\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is the correct sequence of a food chain?","og_description":"In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings. - Food chains illustrate the flow of energy through an ecosystem. - The sequence starts with producers, followed by consumers at different trophic levels. - Diatoms (phytoplankton) are producers. - Crustaceans (zooplankton) are primary consumers. - Herrings (fish) are secondary consumers.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:50:17+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-correct-sequence-of-a-food-chain\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/","name":"Which one of the following is the correct sequence of a food chain?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:50:17+00:00","dateModified":"2025-06-01T10:50:17+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"In a typical aquatic food chain involving these organisms, diatoms are producers (phytoplankton), which form the base of the food chain by converting sunlight into energy. Crustaceans (like zooplankton) are primary consumers that feed on diatoms. Herrings are fish that feed on crustaceans, acting as secondary consumers. Therefore, the correct sequence is Diatoms -> Crustaceans -> Herrings. - Food chains illustrate the flow of energy through an ecosystem. - The sequence starts with producers, followed by consumers at different trophic levels. - Diatoms (phytoplankton) are producers. - Crustaceans (zooplankton) are primary consumers. - Herrings (fish) are secondary consumers.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-sequence-of-a-food-chain\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Which one of the following is the correct sequence of a food chain?"}]},{"@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\/91219","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=91219"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91219\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}