Prijava na forum:
Ime:
Lozinka:
Prijavi me trajno:
Trajanje:
Registruj nalog:
Ime:
Lozinka:
Ponovi Lozinku:
E-mail:

ConQUIZtador
nazadnapred
Korisnici koji su trenutno na forumu 0 članova i 1 gost pregledaju ovu temu.
Idi dole
Stranice:
Počni novu temu Nova anketa Odgovor Štampaj Dodaj temu u favorite Pogledajte svoje poruke u temi
Tema: First Ever Multicellular Animals Found In Oxygen-Free Environment  (Pročitano 1183 puta)
07. Apr 2010, 12:35:53
Prijatelj foruma
Svedok stvaranja istorije


Zodijak
Pol Muškarac
Poruke 21103
Zastava Ту негде...
OS
Windows 7
Browser
Opera 9.80
First Ever Multicellular Animals Found In Oxygen-Free Environment
By Stuart Fox


Unnamed Loriciferan: via Nature

In the 236 years since oxygen was identified as a life-giving necessity, no scientist anywhere has discovered a multicellular animal capable of living without the stuff. Until now. Researchers from Scripps Institution of Oceanography in La Jolla, California, have discovered three new species that live their entire life in an anoxic pit beneath the Mediterranean Sea. This discovery drastically revises science's understand of where animals can thrive.

Prior to this discovery, the only organisms capable of life in oxygen-free environments were viruses and bacteria.

Unlike plants, all previously discovered animals, and fungi, the newly discovered animal species don't use mitochondria, the cellular organelle that converts sugar and oxygen into water, CO2 and, energy, to power their cells. Instead, these weird creatures have an organelle that resembles a hydrogenosome, a cellular component used by some microbes to produce energy with complex enzymatic reactions.

The organisms themselves, none of which have been named yet, all belong to the phylum Loricifera, measure less than 0.04 inches long, and were found almost 10,000 feet down in sediment previous assumed to contain only viruses and bacteria. This is not the first time that scientists have discovered animals living in an anoxic environment, but all the previously discovered species needed to surface periodically for some O2. That makes these creatures the first animals ever discovered that spend their whole lives without oxygen.

How these animals evolved, and what else might be down in this forbidding environment remains to be seen. Scripps scientists still have a great deal of analysis to do on these animals, but one thing is for sure: our understanding of animal life will never be the same.

[Nature]

Извор: Popular Science
IP sačuvana
social share
Pogledaj profil
 
Prijava na forum:
Ime:
Lozinka:
Zelim biti prijavljen:
Trajanje:
Registruj nalog:
Ime:
Lozinka:
Ponovi Lozinku:
E-mail:
Moderator
Krajnje beznadezan


Fly Baby, fly...

Zodijak Capricorn
Pol Muškarac
Poruke 11585
Zastava Serbia
OS
Windows XP
Browser
Mozilla Firefox 3.6.3
Pa sad ti vidi sta sve moze u svemiru da postoji, onda! Smile Smile Smile Smile Smile Smile Smile Smile
IP sačuvana
social share
Pogledaj profil
 
Prijava na forum:
Ime:
Lozinka:
Zelim biti prijavljen:
Trajanje:
Registruj nalog:
Ime:
Lozinka:
Ponovi Lozinku:
E-mail:
Prijatelj foruma
Svedok stvaranja istorije


Zodijak
Pol Muškarac
Poruke 21103
Zastava Ту негде...
OS
Windows 7
Browser
Opera 9.80
Pa sad ti vidi sta sve moze u svemiru da postoji, onda! Smile Smile Smile Smile Smile Smile Smile Smile
Изгледа да је свашта могуће. Smile
IP sačuvana
social share
Pogledaj profil
 
Prijava na forum:
Ime:
Lozinka:
Zelim biti prijavljen:
Trajanje:
Registruj nalog:
Ime:
Lozinka:
Ponovi Lozinku:
E-mail:
Prijatelj foruma
Zvezda u usponu


My imaginary friend says Hi.

Zodijak Taurus
Pol Muškarac
Poruke 1878
Zastava
OS
Windows 7
Browser
Mozilla Firefox 3.6.3
mob
LG G2
Mi izgleda imamo mnogo usku definiciju zivota
IP sačuvana
social share
"You, your joys and your sorrows, your memories and your ambitions, your sense of personal identity and free will, are in fact no more than the behavior of a vast assembly of nerve cells and their associated molecules."
--Dr. Francis Crick; Nobel laureate, co-discoverer of the DNA molecule
Pogledaj profil WWW
 
Prijava na forum:
Ime:
Lozinka:
Zelim biti prijavljen:
Trajanje:
Registruj nalog:
Ime:
Lozinka:
Ponovi Lozinku:
E-mail:
Idi gore
Stranice:
Počni novu temu Nova anketa Odgovor Štampaj Dodaj temu u favorite Pogledajte svoje poruke u temi
nazadnapred
Prebaci se na:  

Poslednji odgovor u temi napisan je pre više od 6 meseci.  

Temu ne bi trebalo "iskopavati" osim u slučaju da imate nešto važno da dodate. Ako ipak želite napisati komentar, kliknite na dugme "Odgovori" u meniju iznad ove poruke. Postoje teme kod kojih su odgovori dobrodošli bez obzira na to koliko je vremena od prošlog prošlo. Npr. teme o određenom piscu, knjizi, muzičaru, glumcu i sl. Nemojte da vas ovaj spisak ograničava, ali nemojte ni pisati na teme koje su završena priča.

web design

Forum Info: Banneri Foruma :: Burek Toolbar :: Burek Prodavnica :: Burek Quiz :: Najcesca pitanja :: Tim Foruma :: Prijava zloupotrebe

Izvori vesti: Blic :: Wikipedia :: Mondo :: Press :: Naša mreža :: Sportska Centrala :: Glas Javnosti :: Kurir :: Mikro :: B92 Sport :: RTS :: Danas

Prijatelji foruma: Triviador :: Domaci :: Morazzia :: TotalCar :: FTW.rs :: MojaPijaca :: Pojacalo :: 011info :: Burgos :: Alfaprevod

Pravne Informacije: Pravilnik Foruma :: Politika privatnosti :: Uslovi koriscenja :: O nama :: Marketing :: Kontakt :: Sitemap

All content on this website is property of "Burek.com" and, as such, they may not be used on other websites without written permission.

Copyright © 2002- "Burek.com", all rights reserved. Performance: 0.064 sec za 16 q. Powered by: SMF. © 2005, Simple Machines LLC.