Search found 14 matches

by DrD
Thu Jul 03, 2008 7:44 pm
Forum: Genetics
Topic: Advantageous Mutations
Replies: 3
Views: 3936

And I am white, got a PhD in biology, but I need my 9 years old boy's help to get the correct channel on TV (so many boxes to switch and remotes to punch those days It is probably simpler to drive a damn space shuttle). Intelligence is a veeeery relative commodity. And the statement that africans ar...
by DrD
Thu Jul 03, 2008 7:31 pm
Forum: Microbiology
Topic: why are diatoms classified as stramenopila?
Replies: 5
Views: 6932

Re:

vomer wrote:Also... I need one biological and one commercial reason why diatoms are important?


Here are hints about the commercial side of diatoms :

1) Nobel+Dynamite

2) Oil prospection

3) Filtration

Cheers,

Dr D
by DrD
Thu Jul 03, 2008 7:18 pm
Forum: Evolution
Topic: Help me with some questions pls :)
Replies: 7
Views: 10329

Re: Help me with some questions pls :)

Dear Vomer, First, congratulations: only a true-to-the-bone biologist would take the name of a bone as a pseudo Now lets get down to business : so for 2) I draw a solid line around the common ancestor and fish? and for 4) would it be minx cat and monkey because of tail loss? Sorry i am not sure abou...
by DrD
Mon Jun 30, 2008 7:30 pm
Forum: Botany Discussion
Topic: Alex Studies Botany
Replies: 4
Views: 5875

Re: Alex Studies Botany

a good starting point to get scientific papers (for free instead of the insane 20$ you have to pay on most sites to get those papers which have been paid for by public money in the first place --- and I should know: I am a scientist so I write the damn things !) try this : google scholar Basically, ...
by DrD
Sun Jun 29, 2008 7:46 pm
Forum: Molecular Biology
Topic: Central Dogma??
Replies: 3
Views: 2126

Re: Central Dogma??

Isn't it the conception according to which information goes from DNA to protein but not the reverse (so that the phenotype can not influence the genotype) ?

Cheers
by DrD
Sun Jun 29, 2008 6:04 pm
Forum: Zoology Discussion
Topic: bug found in tap water
Replies: 1
Views: 2922

Re: bug found in tap water

Your bug is in fact a mite (as can be seen from its four pairs of walking -- swimming? -- legs. If it is really swimming efficiently, gliding through water at high speed (as opposed to moving its legs frantically to try to get the hell out of here) then It belongs to the hydracari (water mites) How ...
by DrD
Sun Jun 29, 2008 12:21 pm
Forum: General Discussion
Topic: Name game
Replies: 176
Views: 228593

Re: Name game

Emus hirtus - a nice, large and yellow rove beetle
by DrD
Sat Jun 28, 2008 8:26 pm
Forum: Ecology
Topic: Pond Scum
Replies: 4
Views: 9779

Re: Pond Scum

So I am wondering if anyone else looks through pond scum. Jake (my wonderful fiance) gave me a dissecting microscope for Christmas and I just looked at some pond scum tonight... oh my goodness I am so excited. We biologists are really weird people. Who else in the world than the fiancé of a female ...
by DrD
Sat Jun 28, 2008 8:08 pm
Forum: Ecology
Topic: Surviving cannibals
Replies: 3
Views: 6923

Re: Surviving cannibals

Question: What type of creature, large or small, could sustain it's population by feeding only on it's dead plus air and water? Living creature, but not plant life. (...). If you specifically exclude plants, then what you describe is physically impossible and even the answer "detritivores"...
by DrD
Sat Jun 28, 2008 5:11 pm
Forum: General Discussion
Topic: Name game
Replies: 176
Views: 228593

Re: Name game

Cat wrote:Escherichia coli - bacteria


Ignana iguana (the green iguana)
by DrD
Sat Jun 28, 2008 5:06 pm
Forum: Zoology Discussion
Topic: animals produce spores?!?!
Replies: 3
Views: 8384

Re:

(...) Apicomplexans, previously called Sporozoans, are one type of animal that produces spores. They changed the name partly because it was decided that spores shouldn't be applied to animals, but in the protozoans you have species that have plant, animal, and fungus characteristics, so the term ca...
by DrD
Sat Jun 28, 2008 4:36 pm
Forum: Zoology Discussion
Topic: TYPE OF SPIDER!!
Replies: 3
Views: 3600

Re: TYPE OF SPIDER!!

It looks like (which does not mean it is !) the species Dysdera crocata . This species is completely harmless unless you happen to be... a woodlouse, since D. crocata is specialised in that kind of (hard skelettoned) prey, which explains its impressive chelicerae ("fangs"). Check with this...