Teadlasi on kaua vaevanud k\u00fcsimus, milline loom ilmus esimesena: kas lihaste ja n\u00e4rvis\u00fcsteemita lihtne k\u00e4sn (k\u00e4sna saab siiski lugeda loomaks, sest ta kuulub hulkraksete loomade h\u00f5imkonda Porifera – toim.). v\u00f5i keerulisema kehaehitusega kammloom, kellel on m\u00f5lemad olemas. K\u00fcsimus, mis tundub lihtne, on bioloogias p\u00f5hjustanud \u00fcle k\u00fcmne aasta kestnud vaidlusi, sest kumbki vastus muudaks meie arusaama elu arengust.<\/p>\n
Kui esimene oli kammloom, siis pidid k\u00e4snad oma keerulisemad s\u00fcsteemid evolutsiooni jooksul kaotama, kui aga k\u00e4sn, t\u00e4hendab see, et keerukus arenes hiljem. California \u00dclikooli Berkeley teadlased otsustasid v\u00e4rske pilguga neid andmeid anal\u00fc\u00fcsida, \u00fchendades erinevaid geneetilisi meetodeid ning hinnates tulemusi statistiliselt.<\/p>\n
Nende uuringu tulemused viitavad veenvalt sellele, et just k\u00e4snad olid esimesed loomad Maal, ent teadlased r\u00f5hutavad, et l\u00f5pliku vastuse saab anda vaid kogu teadus\u00fchiskond \u2013 seni on nad aga esitanud sellele h\u00fcpoteesile eriti kaalukaid t\u00f5endeid.<\/p>\n
Vastavat teadusartiklit saab lugeda SIIN<\/a>.<\/p>\n Kuidas see lugu Sind end tundma pani?
\n Saada
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\n Loe kommentaare (1) <\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"Teadlasi on kaua vaevanud k\u00fcsimus, milline loom ilmus esimesena: kas lihaste ja n\u00e4rvis\u00fcsteemita lihtne k\u00e4sn (k\u00e4sna saab siiski…\n","protected":false},"author":2,"featured_media":47232,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[26,27,37,33,35,34,36,31,32,21,28,29,95,19,25,280,23,24,22,20,30,92,93,94],"class_list":{"0":"post-47231","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maailm","8":"tag-breaking-news","9":"tag-breakingnews","10":"tag-ee","11":"tag-eesti","12":"tag-eesti-keel","13":"tag-estonia","14":"tag-estonian","15":"tag-featured-news","16":"tag-featurednews","17":"tag-headlines","18":"tag-latest-news","19":"tag-latestnews","20":"tag-maailm","21":"tag-news","22":"tag-populaarseimad-lood","23":"tag-teadus","24":"tag-top-stories","25":"tag-topstories","26":"tag-uldised-uudised","27":"tag-uudised","28":"tag-viimased-uudised","29":"tag-world","30":"tag-world-news","31":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/115584844607477569","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/47231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=47231"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/47231\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/47232"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=47231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=47231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=47231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}