It is indeed an Otter, though European otter or Eurasian otter (or simply Common otter) would have been more correct. The river otters are in the Lontra genus. But it's certainly close enough. 
Cumulative General Science/Technology Quiz
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Aramazd
Deity
All right,
What are the 3 types of Carbon fixation, what are they and what are the advantages of the 2 that evolved later?
What are the 3 types of Carbon fixation, what are they and what are the advantages of the 2 that evolved later?
C3, C4 and CAM
Rubisco is very inefficient and is inhibited by oxygen. Plants need to take in CO2 but in many cases, this would also mean losing water.
C3 can exchange water and CO2 all the time
C4 is separated in time by opening stomata during night to take in CO2 without losing water rapidly (hot environments eg cacti)
CAM is separated spatially, concentrating the CO2 in a certain nearby cell (I forget its name)
They are less efficient for producing energy than C3, but they are necessary because they can afford to discard that in place for a method of keeping moisture.
Rubisco is very inefficient and is inhibited by oxygen. Plants need to take in CO2 but in many cases, this would also mean losing water.
C3 can exchange water and CO2 all the time
C4 is separated in time by opening stomata during night to take in CO2 without losing water rapidly (hot environments eg cacti)
CAM is separated spatially, concentrating the CO2 in a certain nearby cell (I forget its name)
They are less efficient for producing energy than C3, but they are necessary because they can afford to discard that in place for a method of keeping moisture.
Aramazd
Deity
sirdanilot
BBcode owns in sigs!
Looking it up gives an Eurasian river otter, so I guess Abgar is up for the next question.
edit: Whoops, crossposted with all the posts on the seventh page...
edit: Whoops, crossposted with all the posts on the seventh page...
Mise
isle of lucy
All of them!
It may vary slightly, but I'm talking about the general picture. I'm talking about the genes in the mitochondrion, not the nuclear DNA. Humans have roughly 24,000 genes. 60,000-90,000 is an old estimate.
SS-18 ICBM
Oscillator
I say around 6000.
Correct, Brighteye gets to ask the next one.
Human mitochondria have 37 genes, 24 of those are tRNAs and rRNAs, and another 13 are polypeptides (to make things like ATP synthase). They used to be free living alpha-proteobacteria, but were engulfed by an early eukaryotic cell. Most of their genes have now been absorbed by our nuclear DNA, so many proteins that they require for function are transported to the mitochondria.
Human mitochondria have 37 genes, 24 of those are tRNAs and rRNAs, and another 13 are polypeptides (to make things like ATP synthase). They used to be free living alpha-proteobacteria, but were engulfed by an early eukaryotic cell. Most of their genes have now been absorbed by our nuclear DNA, so many proteins that they require for function are transported to the mitochondria.
Hmm. I'm having trouble thinking of a question that's not too esoteric but also isn't ridiculously easy for all you scientific minds. I don't know at what level to pitch it. Is anyone a doctor, rather than cell biologist?
What is the direct cause of hypertension (that's chronically high blood pressure)?
I don't want the initiating cause, which is being fat in most patients, but the step in the chain that causes hypertension as the next step.
What is the direct cause of hypertension (that's chronically high blood pressure)?
I don't want the initiating cause, which is being fat in most patients, but the step in the chain that causes hypertension as the next step.
Aramazd
Deity
The blood vessels thin?
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