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Articoli marcati con tag ‘fecondazione’

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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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  • Putting bedbugs to bed forever
    A team of scientists has found a way to conquer the global bedbug epidemic. By lending their own arms for thousands of bed bug bites, they have finally found the solution -- a set of chemical attractants, or pheromones, that lure the bedbugs into traps, and keep them there.
  • Christmas colors disguise gliding lizards in the rainforest
    By mimicking the red and green colors of falling leaves, Bornean lizards avoid falling prey to birds whilst gliding, new research has found.
  • Ants show left bias when exploring new spaces
    Unlike Derek Zoolander, ants don't have any difficulty turning left. New research has found that the majority of rock ants instinctively go left when entering unknown spaces. Around ten percent of people are left-handed and brain lateralization is widespread in other vertebrates.
  • European fire ant impacts forest ecosystems by helping alien plants spread
    An invasive ant species that has become increasingly abundant in eastern North America not only takes over yards and delivers a nasty sting, it's helping the spread of an invasive plant species. The ants are very effective dispersers of invasive plant seeds and new research suggests that together they could wreak havoc on native ecosystems.
  • The ants that conquered the world
    About one tenth of the world's ants are close relatives; they all belong to just one genus out of 323, called Pheidole. New research suggests that Pheidole evolved the same way twice, once to take over the New World, and then again to take over the Old World.
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