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Old 01-31-2008, 06:19 PM   #1
Nerdanel
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Quote:
Originally Posted by sisterandcousinandaunt View Post
Sounds good.

How DO they determine it? Is it temperature dependent, like alligators? Or is this about how the scientists determine it, lol.
Hehe.. Mostly the scientists, yes.

As far as I know and understand (the articles I read weren't the most fresh ones..), it's not determined by environmental factors, so temperature doesn't seem to play a role.. The thing is, they can switch. Sex cells are differentiated from undifferentiated cells that seem to be able to differentiate into more or less any cell type. When the hydra enters gametogenesis, though, all stem cells become sex cells, and within one individual they are pre-determined. "Male" sex cells can switch to female, though, but not the other way around. Then there are all kinds of cool mechanisms by which this is controlled so that not all individuals become completely female. Many species are hermaphrodites, too.
Anyway, even as adults they can switch their sex. Which is pretty cool, and has also been found in some fish.

And all of this makes me awfully happy.
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Old 01-31-2008, 07:03 PM   #2
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Freshly baked chocolate cake from the oven with milk + an article about the amazing sex determining system in Hydra --> life is not too bad
Hydra are so fun. Not so much for Dafnia, but the rest of us find them quite amusing.
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Old 02-01-2008, 11:00 AM   #3
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Thanks Sane!

I'm happy because it is Friday afternoon, I rode home on my bike with stormwind in my back and when I got home my mum and sis were also home, so we could have a nice cup of tea together. Just like old times!
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Old 02-01-2008, 11:16 AM   #4
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Indeed, it is Friday. The winds have been quite fierce here too, and we have snow again! I'm sure it'll be gone before tomorrow, though.. :/ Anyway, I still haven't biked home but I have a feeling the wind won't be in my back. Nice no matter what.
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Old 02-01-2008, 11:21 AM   #5
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I had the wind against me yesterday... when I had to catch a train. I was still in time, barely. But then my train got stuck in a small village because of a tree on the tracks, so in the end I didn't make it to class on time anyhow.
But I like storm nonetheless. With a cup of tea.
They are predicting snow here as well for tonight!!!
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Old 02-01-2008, 11:33 AM   #6
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Yay!^^ I hope it lasts.
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Old 02-01-2008, 01:22 PM   #7
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I'm glad we have a gym, otherwise I could've broken something/-one.
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Old 02-01-2008, 01:35 PM   #8
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Oh? That doesn't sound too happy?
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Old 02-01-2008, 05:50 PM   #9
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I got in and they even offered me singinglessons!!! But I probably can't join...
Still, I'm happy they accepted me though. "They" being a choir I wanted to join.
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Last edited by Mari : 02-01-2008 at 05:51 PM. Reason: clarification
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Old 02-02-2008, 02:46 PM   #10
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I went out with my sis today. We went to an open campus (for her) and then out for lunch. She took today off for this. Yay!
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Old 02-02-2008, 03:05 PM   #11
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David Attenborough makes me happy.
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Old 02-02-2008, 04:41 PM   #12
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David Attenborough makes me happy.
Likewise! I've got the fourth noted in my diary. I'm looking forward big time to the Life in Cold Blood series.
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Old 02-02-2008, 05:40 PM   #13
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Likewise! I've got the fourth noted in my diary. I'm looking forward big time to the Life in Cold Blood series.
Oh, yes.
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Old 02-02-2008, 06:01 PM   #14
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Mwaha....ahaha....AHAHAHAHAHAHAHAHAHA.

I got a hair cut. Shhhhhh.

I was told I could get my hair 'trimmed' a few weeks ago, so I went ahead and did it because I'm tired of feeling like my hair looks like crap. It's definitely a new look for me... the hair is relatively trimmed on the sides, but we left a lot of the length on the top. It's not a weird hair style or anything, just not something I've ever worn before. I kind of like it .

EDIT: Herm, well my mom says that it really looks dramatically shorter. Dang. I was hoping it wouldn't be too bad, but she says it is. So I may get in trouble over it, but hopefully not.

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Old 02-02-2008, 11:27 PM   #15
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Are you sure? Sounds kinda like a mullet to me... *suspicious*
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Old 02-03-2008, 12:11 AM   #16
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If it's a mullet, then it's the sexiest mullet I ever did see. >.<


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Old 02-03-2008, 08:15 AM   #17
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Start of Chinese New Year holidays!!! Twelve days off-YAY!

Especially after the usual end-of-semester mad rush- everything from kindergarten pageants to cramming students for college-entrance interviews and essays.

On the down side, it's the Year of the Rat, which is good for new beginnings, but the worst year for us Horse types- we're direct opposites.

So, HAPPY CHINESE NEW YEAR! (even if it's not till Wednesday.)
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Old 02-03-2008, 10:54 AM   #18
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Yay!

I've been auditioning for summer dance intensives with a bunch of ballet companies. Like a lot of auditions. Every weekend. But I not only got into one of my favorite ones, but I got FULL scholarship including room & board for the whole thing! I'm so excited and I can't wait to go!

Also in good news, I also got into other good programs with money, but I'm very happy with the one I picked.
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Old 02-03-2008, 03:07 PM   #19
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I've been auditioning for summer dance intensives with a bunch of ballet companies. Like a lot of auditions. Every weekend. But I not only got into one of my favorite ones, but I got FULL scholarship including room & board for the whole thing! I'm so excited and I can't wait to go!

Also in good news, I also got into other good programs with money, but I'm very happy with the one I picked.

Congratz! That's super exciting news .
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Old 02-03-2008, 03:05 PM   #20
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Happy New Year GrayMouser! Have a great spring festival and watch out for the "Year Beast"

How will you celebrate? Any chance that you'll get some red envelopes full of money? Or is that only for the younger ones?

You don't like the year of the Rat? One should think a person with your nickname should like a year dedicated to a rodent
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