{"id":224609,"date":"2025-06-03T10:04:47","date_gmt":"2025-06-03T10:04:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=224609"},"modified":"2025-06-03T10:04:49","modified_gmt":"2025-06-03T10:04:49","slug":"exhibits-the-phenomenon-of-molting-has-a-mantle-and-an-open-circulatory-system-have-a-coelom-and-a-closed-circulatory-system-has-an-endoskeleton-made-of-calcium-rich-plates","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/03\/exhibits-the-phenomenon-of-molting-has-a-mantle-and-an-open-circulatory-system-have-a-coelom-and-a-closed-circulatory-system-has-an-endoskeleton-made-of-calcium-rich-plates\/","title":{"rendered":"Exhibits the phenomenon of molting has a mantle and an open circulatory system have a coelom and a closed circulatory system has an endoskeleton made of calcium-rich plates"},"content":{"rendered":"\n

Exhibits the phenomenon of molting has a mantle and an open circulatory system have a coelom and a closed circulatory system has an endoskeleton made of calcium-rich plates<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The image displays different marine organisms and characteristics associated with various animal phyla. Here is the correct matching between the characteristics and the organisms:<\/p>\n\n\n\n

    \n
  1. Exhibits the phenomenon of molting<\/strong> \u2192 Spider (bottom right)<\/strong><\/li>\n\n\n\n
  2. Has a mantle and an open circulatory system<\/strong> \u2192 Mollusk (top right)<\/strong><\/li>\n\n\n\n
  3. Have a coelom and a closed circulatory system<\/strong> \u2192 Earthworm (top left)<\/strong><\/li>\n\n\n\n
  4. Has an endoskeleton made of calcium-rich plates<\/strong> \u2192 Starfish (bottom left)<\/strong><\/li>\n<\/ol>\n\n\n\n

    Explanation<\/h3>\n\n\n\n

    Animal phyla can be differentiated based on structural and physiological characteristics. Let\u2019s analyze each organism in the image:<\/p>\n\n\n\n

      \n
    1. Spider (Arthropod)<\/strong>: Spiders belong to the phylum Arthropoda. A defining trait of arthropods is the presence of an exoskeleton made of chitin, which they must shed periodically to grow \u2014 a process called molting<\/strong> or ecdysis<\/strong>. This molting enables them to increase in size and is controlled by hormones.<\/li>\n\n\n\n
    2. Mollusk (e.g., Clam or Shellfish)<\/strong>: This animal represents the phylum Mollusca. Mollusks typically have a mantle<\/strong>, a specialized tissue that secretes the shell in many species. They also have an open circulatory system<\/strong>, where blood is not always enclosed in vessels but flows into open spaces (hemocoel), except for cephalopods like squids and octopuses.<\/li>\n\n\n\n
    3. Earthworm (Annelid)<\/strong>: The earthworm belongs to the phylum Annelida. Annelids have a coelom<\/strong>, a fluid-filled body cavity completely lined by mesoderm. They also possess a closed circulatory system<\/strong>, where blood circulates within vessels throughout the body, facilitating efficient nutrient and gas exchange.<\/li>\n\n\n\n
    4. Starfish (Echinoderm)<\/strong>: Starfish are part of the phylum Echinodermata. They have an endoskeleton made of calcium-rich plates<\/strong> called ossicles. This internal skeleton provides structural support and protection. Echinoderms also exhibit radial symmetry and a unique water vascular system used for locomotion and feeding.<\/li>\n<\/ol>\n\n\n\n

      Each of these traits reflects adaptations suited to the animal’s environment and biological needs. Understanding these distinctions helps categorize and study biodiversity effectively.<\/p>\n\n\n\n

      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      Exhibits the phenomenon of molting has a mantle and an open circulatory system have a coelom and a closed circulatory system has an endoskeleton made of calcium-rich plates The Correct Answer and Explanation is: The image displays different marine organisms and characteristics associated with various animal phyla. Here is the correct matching between the characteristics […]<\/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-224609","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/224609","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=224609"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/224609\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=224609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=224609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=224609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}