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Jan16-12 Greg Bernhardt
Introduction to Evolution The study of evolution has dominated the field of biology for over a century. Explaining...
Oct25-11 11:42 AM
0 18,195
reference, websites Sticky Thread Pinned: Reference websites ( 1 2 3)
Take a look at this website, it has some really neat Clips, Stills, and Slides of small life forms: ...
Jan10-14 02:09 AM
43 69,734
Hey guys and gals, Just wondering if you could tell me wether or not their are any environments that give exothermic...
Oct20-05 09:08 AM
3 1,324
if anyone can find info on how to hack into a msn chatroom thatd be great.
Mar26-03 06:42 PM
3 1,864
Now here is the question. We know that CO is a toxic substance if inhaled, But why ? The explaination i heard said...
Mar21-03 10:49 AM
11 2,664
My text book says that thromboplastin which is produced by damaged tissues acts as the catalyst to convert prothrombin...
Jun29-04 12:20 PM
6 1,675
Why do you get haemolytic disease in a baby ( not first baby) if the mother is Rh- and her anti D antibodies cross the...
Nov7-04 01:36 PM
1 1,672
I would like to know what might be the reasons for one's hair color to automatically change... Why does it happen ? ...
Jun8-04 11:40 PM
0 1,026
i have just learnt from my biology class that Sulfur plays an important role hair structure, but I am still looking...
Jul26-04 05:54 AM
1 3,279
Can someone explain to me why there are difference in humans hair color? Why black and blond and brown and red only? ...
Aug17-07 12:09 PM
2 2,892
The hair on my head grows longer and longer while other hairs, like arm hair, only grow to a much shorter length. Why...
Apr10-13 08:08 AM
16 3,172
Why does the hair on our bodies (much like the hair on animals) grow to a certain point, then fall out/stop, but the...
Sep4-05 12:48 PM
2 1,888
I know hair grows from skin, and about 0.5-1.5 inchs long. do u no any way to stop hair growning. any way that is not...
Sep5-05 10:33 AM
6 948
Would you please give me some explanation about DNA's hairpin structure ? There is nothing mentioned about this...
May26-04 08:27 PM
1 10,692 This paper states that rates of beneficial mutations can not account...
Oct25-06 09:01 PM
1 1,468
Besides the radioactive elements, do the other elements on the Periodic Table of the Elements have half-lives?
Sep3-03 02:31 PM
13 10,703
I've read that when washing one's hands, the primary mechanism by which the hands become clean is mechanical. That...
Nov16-10 02:50 AM
2 5,421
As an adjunct to the Handedness thread, I thought it would be interesting to find out just how the PF community sorts...
Jan12-07 11:11 PM
2 1,542
Why do we get hang nails and why do they form? Any way to prevent the annoying little things?
Apr10-05 09:56 PM
5 9,816
In the film Hannibal there is a scene where Clarice is listening to a tape of Hannibal Lecter talking to Barney....
Jun19-12 05:20 AM
5 5,469 A humorous celebration in Ontario includes a potluck dinner composed of as many taxa as...
Feb13-04 01:27 PM
3 1,353
Source. Who else here has observed several (or perhaps many, yech) food items which have "resisted decomposition"...
Dec22-10 08:16 AM
10 4,123
I have read several posts asserting that mutation and natural selection cannot add complexity or useful functions to...
Apr2-13 12:15 PM
6 3,340
Hi all, My 9 year old just asked me what is harder.. teeth or bones? Any suggestions?
Nov3-08 04:49 PM
1 4,361
It would seem to me that after monohybrid mating, the frequency of the dominant and recessive allele should change? I...
Mar30-14 01:55 PM
3 1,201 I'm for it, go cloning!!
Jun15-06 01:42 PM
1 1,514
Dec3-10 05:10 PM
3 2,743
To jump from a single celled organism to a multicellular one, we need beneficial addition mutations in DNA sequences....
Jan18-08 01:17 PM
28 6,124
Has biology ever predicted an organisms action exactly correctly? meaning, has biology ever reduced an organism...
Oct7-03 09:02 PM
2 1,811
I know that it has been 'proven', but my question is, has it actually been observed by somebody? Yes, we can see the...
Feb4-10 04:05 PM
45 10,233,4273,4348751,00.html For those who dream of a better life, science has...
Nov3-05 02:59 AM
19 3,484
I remember I used to be sad when I saw an animal die, especially if it were something like a domesticated cat catching...
Jun28-04 02:10 PM
12 2,231
It seems likely to me since the first tools we used as primates-early man. Think about it, those early, pre-homosapien...
Nov30-08 07:56 PM
Proton Soup
6 5,211
i'm going to say yes yes because i notice i've been drinking tap water since i was a kid and even though its not...
Jan12-14 12:43 AM
14 2,070
Have there been any recorded instances of genetically identical human siblings other than identical twins?
Nov7-06 12:52 AM
5 7,056
In the Earth's fossil record, some people say "yes" and some people say "no", not just in humans but mammals.
May24-05 04:46 PM
Gold Barz
3 1,487
I've always hated biology, do you have some tools to make me like them ? Thanks, Alexandria
Apr3-12 07:38 PM
9 2,989
I am looking for examples of significant macro evolutionary changes that have actually been observed. I am aware of...
Dec14-09 04:18 PM
14 2,920
Hi guys. Right now I'm 14 years old. All my friends say I have a big head, and quite frankly I do (I'm referring to...
Jul17-09 05:55 PM
4 22,414
How would the concept of having fun benefit animals? To the point in which natural selection favors animals that have...
Mar13-04 08:42 PM
Loren Booda
8 2,789
I've just finished 1st year of my science degree, supposedly where they give you a taste of everthing possible, and...
Nov17-03 09:38 PM
14 2,042
"Photosystem I transfers electrons to NADP+, reducing it to NADPH." This is mentioned many times in my text book,...
Mar22-11 06:43 AM
2 9,920

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