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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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  • Old drug may be key to new antibiotics
    An anticonvulsant drug called lamotrigine is the first chemical inhibitor of the assembly of ribosomes in bacteria. he discovery is important as there is growing concern worldwide about how antibiotic resistance is making the cures for infections ineffective. The World Health Organization has declared that antibiotic resistance is a major threat to global he […]
  • Answer to restoring lost island biodiversity found in fossils
    Many native species have vanished from tropical islands because of human impact, but scientists have discovered how fossils can be used to restore lost biodiversity. The key lies in organic materials found in fossil bones, which contain evidence for how ancient ecosystems functioned, according to a new study.
  • Genetic switch regulates a plant's internal clock based on temperature
    Scientists have found the molecular cog in a plant's biological clock that modulates its speed based on temperature. "Temperature helps keep the hands of the biological clock in the right place," said the corresponding author of the study. "Now we know more about how that works."
  • Antifreeze proteins in Antarctic fishes prevent freezing…and melting
    Antarctic fishes that manufacture their own 'antifreeze' proteins to survive in the icy Southern Ocean also suffer an unfortunate side effect, researchers report: The protein-bound ice crystals that accumulate inside their bodies resist melting even when temperatures warm.
  • Plant variants point the way to improved biofuel production
    Scientists have discovered variant plants with straw that are more easily digested for biofuel production. Critically, the plants are not significantly smaller or weaker than normal plants. The discovery could make biofuels from plant residues easier and cheaper to make, reducing pressure on food crops used for biofuels.
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