{"id":186305,"date":"2025-01-24T17:36:16","date_gmt":"2025-01-24T17:36:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=186305"},"modified":"2025-01-24T17:36:18","modified_gmt":"2025-01-24T17:36:18","slug":"the-following-diagram-is-a-longitudinal-cross-section-of-a-sponge-grantia-sp","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/24\/the-following-diagram-is-a-longitudinal-cross-section-of-a-sponge-grantia-sp\/","title":{"rendered":"The Following Diagram Is A Longitudinal Cross-Section Of A Sponge (Grantia Sp.)"},"content":{"rendered":"\n<p>The Following Diagram Is A Longitudinal Cross-Section Of A Sponge (Grantia Sp.). Match The Labeled Morphological Features With Their Appropriate Names. C B | A A Osculum \/ Oscula 4 B Spongocoel + C Choanocytes \/ Collar Cells D Ostium \/ Ostia<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/01\/image-448.png\" alt=\"\" class=\"wp-image-186306\"\/><\/figure>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>\ue200i\ue202turn0image0\ue202turn0image1\ue202turn0image2\ue202turn0image3\ue201\ue203In the longitudinal cross-section of the sponge <em>Grantia<\/em> sp., the labeled morphological features correspond to the following:\ue204\ue206<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A: Osculum\/Oscula<\/strong>\ue206<\/li>\n\n\n\n<li><strong>B: Spongocoel<\/strong>\ue206<\/li>\n\n\n\n<li><strong>C: Choanocytes\/Collar Cells<\/strong>\ue206<\/li>\n\n\n\n<li><strong>D: Ostium\/Ostia<\/strong>\ue206<\/li>\n<\/ul>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>\ue203<em>Grantia<\/em> sp., a member of the phylum Porifera, exhibits a syconoid body plan characterized by a series of canals and chambers that facilitate water flow and nutrient acquisition.\ue204\ue206<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Osculum\/Oscula (A):<\/strong> \ue203The osculum is the large opening at the apex of the sponge through which water exits after circulating through the internal canals.\ue204 \ue203In the diagram, &#8216;A&#8217; denotes this exit point.\ue204 \ue203The plural form, &#8216;oscula,&#8217; refers to multiple such openings.\ue204 \ue200cite\ue202turn0search0\ue201\ue206<\/li>\n\n\n\n<li><strong>Spongocoel (B):<\/strong> \ue203The spongocoel is the central cavity of the sponge, lined with choanocytes.\ue204 \ue203Water enters the spongocoel from the radial canals and exits through the osculum.\ue204 \ue203In the diagram, &#8216;B&#8217; represents the spongocoel.\ue204 \ue200cite\ue202turn0search0\ue201\ue206<\/li>\n\n\n\n<li><strong>Choanocytes\/Collar Cells (C):<\/strong> \ue203Choanocytes, or collar cells, are specialized cells lining the radial canals.\ue204 \ue203Each cell has a flagellum surrounded by a collar of microvilli that traps food particles from the incoming water.\ue204 \ue203The beating of the flagella creates a water current, aiding in feeding and gas exchange.\ue204 \ue203In the diagram, &#8216;C&#8217; indicates the location of these cells.\ue204 \ue200cite\ue202turn0search0\ue201\ue206<\/li>\n\n\n\n<li><strong>Ostium\/Ostia (D):<\/strong> \ue203Ostia are the small pores on the surface of the sponge through which water enters.\ue204 \ue203These pores lead to the incurrent canals, facilitating the flow of water into the sponge.\ue204 \ue203In the diagram, &#8216;D&#8217; marks the position of the ostia.\ue204 \ue200cite\ue202turn0search0\ue201\ue206<\/li>\n<\/ul>\n\n\n\n<p>\ue203Understanding these structures is crucial for comprehending the sponge&#8217;s feeding mechanism, which relies on the continuous flow of water through its body to filter out food particles and oxygen.\ue204 \ue203The coordinated function of these components enables <em>Grantia<\/em> sp. to efficiently filter feed and maintain its physiological processes.\ue204<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Following Diagram Is A Longitudinal Cross-Section Of A Sponge (Grantia Sp.). Match The Labeled Morphological Features With Their Appropriate Names. C B | A A Osculum \/ Oscula 4 B Spongocoel + C Choanocytes \/ Collar Cells D Ostium \/ Ostia The Correct Answer and Explanation is : \ue200i\ue202turn0image0\ue202turn0image1\ue202turn0image2\ue202turn0image3\ue201\ue203In the longitudinal cross-section of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-186305","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=186305"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/186305\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=186305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=186305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=186305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}