Biology - December 2007

WHY?

2007-12-07 19:25:14 · 11 answers · asked by Anonymous

pain in urinary part and some swelling also there

2007-12-07 18:19:57 · 9 answers · asked by Anonymous

2007-12-07 17:58:09 · 5 answers · asked by mavericksfan1980 1

2007-12-07 17:13:54 · 18 answers · asked by Jared T 1

For my biology project i'm researching polydactylism which is when you have more than 5 fingers/toes per hand/foot. One of my questions is How can a mutation result in an added structure, such as an extra finger or toe? (hint: research the genetics of the tetrapodlimb)

and im having a real hard time finding sites that talk about that on google/yahoo. either its like too complicated for me, or it doesn't even include what im asking for. any sites that could be useful or helpful would be great. or if you just know the answer that'd be great too ! any help will do. thanks :)

2007-12-07 11:32:55 · 3 answers · asked by onetwothreesix 4

For most traits, especially complex behavioral traits like schizophrenia, genes are not a fixed linear blueprint as for hair or skin color but the traits are influenced by interactions with other genes and the environment. A person might be predisposed to be a certain height or lifespan, but things like diet and excercise do have an effect, otherwise we wouldn't bother taking care of our health. Also, you can use animal models to find a genetic or biological influence for pretty much any behavior, not just homosexuality. Certain breeds of dogs, for instance, are bred for agression and you could argue that agressive behavior in certain individuals is caused by too much testosterone or a deficiency in gray matter in the brain. Studies with identical twins also show that they are more likely to share behavioral traits than nonidentical twins. The problem with these studies is correlative studies don't prove that a gene causes a trait, otherwise all twins would behave the same.

2007-12-07 08:09:28 · 7 answers · asked by Anonymous

i believe we are constantly evolving, but then why are we still so hairy? how many generations would evolution take to produce less hairy humans? (as in arms, legs, underarms, and such)

if there were a whole cluster of people who were taken to live in the elements and would need their body hair to protect them, in a few generations would they still be as hairy as us, or would they be more hairy to compensate?

if the changes started to become more noticeable, would we also lose the hair on our scalps along with the body hair?

2007-12-07 07:59:00 · 6 answers · asked by Anonymous

Really think about it........all of this life around us now ultimately originated from non-living components.

2007-12-07 06:32:42 · 3 answers · asked by The Angry Stick Man 6

If you dont know what I'm talking about then read the Maximum Ride series by James Patterson.

2007-12-07 05:59:07 · 5 answers · asked by Alex M 1

2007-12-07 05:58:34 · 17 answers · asked by Anonymous

umm, if man come from monkeys and evolved from monkeys and monkeys are here why arent men still coming from monkeys??

2007-12-07 05:48:39 · 39 answers · asked by forsonclan03@yahoo.com 2

Please provide sources to scientific research. I would like empirical data, not merely conjecture.

2007-12-07 04:09:03 · 22 answers · asked by Arthurpod 4

Can you close your nose without holding it ? i.e. block it without using your fingers or doing anything other than just...blocking it, so that you can't smell through it, breath through it etc. The same sort of action as swallowing or breathing, that you can't describe - you just DO it.
My whole family can do it as well as a couple of friends (that I know of) and I always thought everyone could until someone looked at me like I was talking craaaazy when I mentioned it somehow.
My boyfriend also thinks I'm loopy, so I said I'd do a survey.
Can most people do it or not?

* 24 minutes ago
* - 3 days left to answer.

Additional Details

13 minutes ago
No, it's not just holding your breath - you can still breath through your mouth. And it definitely doesn't hurt!

2007-12-07 02:03:48 · 11 answers · asked by nectarine head 2

I know there are different blood groups, but in short, what is it that makes them different?

2007-12-06 20:47:29 · 7 answers · asked by C4 Snake 3

I have a few questions on cellular respiration. Is it a chemical chande or physical change? does it take place in every organism such as fungi and bacteria too. Does cellular respiration gove pf materials needed for digetion? Can you explaim to me what it really is in a non-complicated form. I don't really get it becasue all the other webs have it all complicated. I dont need the formula either! THANKS A BUNCH!

2007-12-06 15:24:03 · 4 answers · asked by :D 2

Also, are sister chromatids identical or do they contain different alleles?

2007-12-06 15:15:16 · 3 answers · asked by Kylie 2

2007-12-06 15:05:56 · 10 answers · asked by Melissa M 1

Do you believe the male-female principle, as in the original creation, is not the same idea as a comparison between men and women. Anyone know any more on all this?

2007-12-06 14:37:19 · 4 answers · asked by ZORRO 3

2007-12-06 11:42:12 · 7 answers · asked by yellow shiny star 1

2007-12-06 10:11:29 · 2 answers · asked by huzaifah k 2

Someone tell me if an earthworm can regenerate if it got hurt, It doesn't matter how it gets hurt, I just need to know if an earthworm can regenerate if it got hurt. Am not being rude, but if u don't know wat regenerate mean It means healing really fast, even if its half body is gone. And one more thing if u can please give me the answer before Monday the 9th or if u can please give me the answer ASAP. Thank You.

2007-12-06 09:34:00 · 3 answers · asked by JerBear 3

When Water boils it bubbles where milk does not?why

2007-12-06 07:02:32 · 2 answers · asked by mohanlifeisbeautiful 1

I we're nthink we are because all of our cells are the same, we're just a tiny bit more evolved but we're still 'animals'. But people think its terrible to be called an animal because theyre dirty creatures that roll around on the ground something lol. we arent exactly some sort of new species, most christians think we are because of the god crap but i dno i dont think so. what do you think?

2007-12-06 05:48:20 · 9 answers · asked by Trust me, im English 3

1.Organisms in the first tropic level are called?
(A)consumers
(B)omnivores
(C)autotrophs

2. Which of the following factors are most important in determining the climax community which inhabits a givin area?
(A)temperature and precipitation
(B)distance east or west of the atlantic ocean
(C)presence or absence of underground oil

2007-12-06 05:19:00 · 1 answers · asked by Hannah L 1

Or is it the same size?

2007-12-06 04:53:48 · 3 answers · asked by Chritting 4

2007-12-06 04:00:26 · 7 answers · asked by Shelly 1

How do you do a serial dilution? What is the protocol for one?If you are given a 3.5% solution how u make 1.75?

2007-12-06 03:12:39 · 0 answers · asked by Earl Bkins 2

I am a freshman in sophomore honors biology. My teacher is really hard and he gives these insane essay questions for us to do. I normally get them but this time i cant figure it out. "Why did the echinoderms give rise to chordates as apposed to arthropods or any other phylum." I think it is because echinoderms have an internal skeleton and their embryological development patters are deuterosomal. If someone could critique me and add some more reasons would be really great.

2007-12-06 01:50:59 · 4 answers · asked by 1337_3[V]0_3A73/2 2

I meeting with my son's science teacher to discuss evolution because I will not allow him to be in class for it. I need some basic info on the lies, such as the inaccuracy of radiometric dating etc. I am familar with answers in genesis and dr dino but want something I can quickly refer to that is short so I can study and know it better.

2007-12-06 01:45:05 · 20 answers · asked by Kelly 2

Define an operon (what it is, where it is found), and tell me the
critical difference between the trp operon and the lac operon. How does
each one work? Why is the trp operon repressed when tryptophan is
present, while the lac operon is not repressed in the presence of
lactose?

2007-12-06 01:28:28 · 4 answers · asked by Jennifer R 1