{"id":5512,"date":"2023-02-05T05:59:08","date_gmt":"2023-02-05T05:59:08","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=5512"},"modified":"2024-12-13T11:26:45","modified_gmt":"2024-12-13T11:26:45","slug":"s-20-a-why-are-seeds-dispersed","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-20-a-why-are-seeds-dispersed\/","title":{"rendered":"S-20.a Why Are Seeds Dispersed?"},"content":{"rendered":"\n<h3 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Seed Dispersal<\/strong><\/h3>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes :<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/www.shalom-education.com\/wp-content\/uploads\/2023\/01\/Shutterstock_1689714946-1-1024x853.jpg\" alt=\"Seed Dispersal | KS3 Biology Revision\" style=\"width:454px;height:auto\"\/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-baa4c556ce7e738fcca721973afbafe9\" style=\"color:#000060\">1. <strong>Definition of Seed Dispersal<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Seed dispersal is the process by which seeds are spread from the parent plant to different locations, where they can grow into new plants.<\/li>\n\n\n\n<li>This helps plants avoid overcrowding, find more resources (like sunlight, water, and nutrients), and prevent the spread of diseases.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-4ef76daafb896ce3f52c4d91e3e1ef2a\" style=\"color:#000060\">2. <strong>Importance of Seed Dispersal<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Reduces competition<\/strong>: Seeds move away from the parent plant, which reduces competition for resources.<\/li>\n\n\n\n<li><strong>Increases plant diversity<\/strong>: It allows plants to colonize new areas and maintain genetic diversity.<\/li>\n\n\n\n<li><strong>Survival of species<\/strong>: By dispersing seeds, plants increase the likelihood of their survival in different environments.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-017c85781acdd778476a89a74df8b87e\" style=\"color:#000060\">3. <strong>Methods of Seed Dispersal<\/strong>:<\/h3>\n\n\n\n<p class=\"has-large-font-size\">There are several ways in which seeds can be dispersed. The primary methods are:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Wind Dispersal<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Seeds are lightweight and can be carried by the wind over long distances.<\/li>\n\n\n\n<li>Example: Dandelion seeds, maple seeds (helicopters).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Water Dispersal<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Seeds float on water and are carried away to new areas, especially near rivers, lakes, and oceans.<\/li>\n\n\n\n<li>Example: Coconut seeds can float in water for long distances.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Animal Dispersal<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Animals either eat the fruit and excrete the seeds elsewhere or seeds stick to their fur and are carried to new locations.<\/li>\n\n\n\n<li>Example: Berries eaten by birds, burdock seeds sticking to animal fur (like thistles).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Explosive Dispersal<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Some plants have seed pods that explode when they mature, throwing seeds outward with force.<\/li>\n\n\n\n<li>Example: Pea plants, poppy plants.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Human Dispersal<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Humans play a role in seed dispersal by transporting seeds intentionally or accidentally (through agriculture, gardening, or travel).<\/li>\n\n\n\n<li>Example: Fruit crops transported to different regions.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-6635d9881fa066c9a2aa1534d381281b\" style=\"color:#000060\">4. <strong>Adaptations for Seed Dispersal<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Winged seeds<\/strong>: Some seeds are designed to glide in the air (e.g., maple seeds).<\/li>\n\n\n\n<li><strong>Spiny or hooked seeds<\/strong>: These seeds are designed to attach to animals (e.g., burrs).<\/li>\n\n\n\n<li><strong>Fleshy fruits<\/strong>: Fruits with edible flesh attract animals, which eat them and disperse the seeds.<\/li>\n\n\n\n<li><strong>Light seeds<\/strong>: Some seeds are small and light, allowing them to be carried by wind or water.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-0c05e7e8b72c9642aa8f0ebb1c516cd6\" style=\"color:#000060\">5. <strong>Examples of Plants and Their Dispersal Methods<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Coconut<\/strong>: Dispersed by water, as coconuts can float across oceans.<\/li>\n\n\n\n<li><strong>Dandelion<\/strong>: Dispersed by wind, with light, feathery seeds.<\/li>\n\n\n\n<li><strong>Burdock<\/strong>: Dispersed by animals, as the seeds stick to their fur.<\/li>\n\n\n\n<li><strong>Peas<\/strong>: Explosive dispersal, where seed pods burst open when ripe.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-f2f917730654834b3863b8d5ea7c4f66\" style=\"color:#000060\">6. <strong>Impact of Seed Dispersal<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Helps plants colonize new areas and spread across different regions.<\/li>\n\n\n\n<li>Some plants rely on specific dispersal methods (like animals or wind), which can affect their distribution.<\/li>\n\n\n\n<li>Seed dispersal can lead to the growth of new ecosystems, promoting biodiversity.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/82614\/205\/740\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-101.png\" alt=\"\" class=\"wp-image-6157\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-101.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-101-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-101-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-101-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/81741\/638\/710\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-95.png\" alt=\"\" class=\"wp-image-6158\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-95.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-95-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-95-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-95-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Seed Dispersal Key Notes : 1. Definition of Seed Dispersal: 2. Importance of Seed Dispersal: 3. Methods of Seed Dispersal: There are several ways in which seeds can be dispersed. The primary methods are: 4. Adaptations for Seed Dispersal: 5. Examples of Plants and Their Dispersal Methods: 6. Impact of Seed Dispersal: Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-5512","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/5512","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=5512"}],"version-history":[{"count":12,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/5512\/revisions"}],"predecessor-version":[{"id":15407,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/5512\/revisions\/15407"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=5512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}