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Articoli marcati con tag ‘animali diblastici’

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SOMMARIO

  • Gli Animali (o Metazoi) sono  organismi eucarioti, eterotrofii, pluricellulari  e mobili durante almeno uno stadio della loro vita. Si riconoscono circa 1,5 milioni di specie note viventi.
  • Il loro processo evolutivo è in atto da oltre 500 milioni di anni.
  • Sono classificati in base ai differenti piani strutturali corporei che li caratterizzano.

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  • Scientists investigate link between skyrocketing sea slug populations, warming seas
    A team of California scientists believes a far-flung Okenia rosacea bloom -- along with a slew of other marine species spotted north of their typical ranges -- may signal a much larger shift in ocean climate and a strong forthcoming El Niño.
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    Building a protein is a lot like a game of telephone: information is passed along from one messenger to another, creating the potential for errors. Enzymatic machines proofread at each step, and scientists have uncovered a new quality control mechanism along this path. But in a remarkable role reversal, the proofreading isn't done by an enzyme. Instead, […]
  • Baleen whales hear through their bones
    Understanding how baleen whales hear has posed a great mystery to marine mammal researchers. Biologists reveal that the skulls of at least some baleen whales, specifically fin whales in their study, have acoustic properties that capture the energy of low frequencies and direct it to their ear bones.
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