Biology - March 2007

Say you have a jar of perserved peaches that has been preserved over a hundred years. The lid is sealed tight so no entering microbe can seep through. How does a virus get in there?

2007-03-31 06:09:21 · 3 answers · asked by ibid 3

2007-03-31 06:08:34 · 2 answers · asked by kuppyshy 1

I know it has something to do with the function of the organ of Corti (cochlea), but what exactly?

2007-03-31 05:46:59 · 2 answers · asked by gepsimos 1

Which one of these groups is not one a domain under the classification scheme that has a level higher than kingdom?


A. Prokarya

B. Bacteria

C. Archaea

D. Eukarya

2007-03-31 05:37:09 · 5 answers · asked by bb761866 2

I'm curious how social behaviors result in a pattern of activity in an animal. The animal in question (its fictional) is most active at noon and least active at midnight. Knowing how food availability and predators affects the cycle would be nice too.

2007-03-31 05:35:13 · 1 answers · asked by omgitsabombat 1

I need some ideas for a creative cell project...no food allowed.

2007-03-31 05:32:44 · 2 answers · asked by Anonymous

highest frequency allele

1. Recessive allele
2. Allele arising by mutation
3. Dominant allele
4. Fixed allele


lowest frequency allele

2007-03-31 05:31:39 · 3 answers · asked by bb761866 2

Is progeria a dominant or a recessive condition?

2007-03-31 05:18:51 · 2 answers · asked by ~sexyboy~ 1

2007-03-31 04:04:03 · 4 answers · asked by mr30_devil 1

They made a report earlier this week that scientists now believe that there were very little to no new successful species of mammals after the extinction of the dinosaurs. Does this mean there were humans (or the evolutionary equivalent at the time)- and apes, and we were completely separated... in a since, humans have been around since dinosaurs?

2007-03-31 03:53:32 · 2 answers · asked by locusfire 5

Do we evolve over time, or instantly?

The eyes - one of the most complex peices of our bodies, how did we come to have them? Did we have 1/4 of an eye, then half, then a whole eye, or simply had two full eyes one day.

Birds, mammals, reptiles, all have eyes. Did we all come from the same species, and evolve into different groups? Since we all have relatively similar lungs, eyes, a brain, nervous system and skeletal structure?

Is evolution pre-written into genes? How did it get there?

Answers and views from all sides are fully welcomed.

2007-03-31 03:42:41 · 11 answers · asked by Anonymous

I wnna complete my highe education in us but i want from you with thanks to help me to find the best college and even the cheap tition&fees and thank you

2007-03-31 03:17:46 · 1 answers · asked by الفبدرالي 1

When I run an SDS-PAGE and western blot and develop the films, I get these dark staining bands on the molecular weight markers. But they aren't necessarily all clear "bands", they are more like dark areas in the lane where the gel ran and then a couple specific bands. Is it a problem at the gel stage, the transfer, blocking, incubating with antibodies.....what could it be? So this happened and I stripped the original blots and reblotted them, and I got the same results.
Why are the antibodies are sticking to the MWM?!?!?!

2007-03-31 02:23:54 · 1 answers · asked by Risa M 1

is asexual reproduction good or bad for plants and animals or even human beings? what are its advantages and disavantages?

2007-03-31 02:00:23 · 12 answers · asked by emma 1

Australopithecus afarensis lived about 3.18 million years ago, modern humans, homo-sapiens evolved about 1 million years ago. Anyone can see the similarities but also the obvious differences between them.
I'm trying to work out the average change per year ratio, for this. So can anyone help me?

2007-03-31 01:26:59 · 5 answers · asked by Stephman01 2

just curious

2007-03-31 00:56:41 · 2 answers · asked by Anonymous

Hormones in the blood of humans are souble in water... but why?

2007-03-30 22:39:28 · 4 answers · asked by razorbladekisses3 1

Question: Cystic fibrosis is an autosomal recessive trait in human beings. Denote the mutant allele bye c and the normal by C. What percent are expected genotypes, genotypic ratios, phenotypes and phenotypic ratios if both parents are heterozygotes.


Answer: If both parents are heterozygotes, 3 out of 4 of the offspring (children) will be normal phenotype, meaning that they will not inherit cystic fibrosis. This also means that there is a 1 out of 4 chance that the couple will have a child with the disease. In other words, there is a 75% chance that the parents will have a 75% of having normal children and a 25% chance of having children that will have cystic fibrosis. The genotypic ratio is is 1:2:1, meaning that there is one offspring that is homozygous dominant CC and one that is homozygous recessive, cc, and 2 that are heterozygous carriers: Cc, like their parents.

2007-03-30 22:23:29 · 4 answers · asked by maxmac97 1

S Hi... can you help me about goldmans formula/?
it talks about equilibrium potential but as we all know in miofibrils calcium is also important can you tell me the formula containing Ca ?
ofcourse the problem is that its 2+ thus others(cl-na &k)are 1+
it must be changed musn`t?
because ca has a charge of 2+ but other ions in normal formula(k .cl .na) have the charge of 1
plz help please tell me the new formula i really need it
thanx

2007-03-30 22:10:57 · 1 answers · asked by red light 1

2007-03-30 19:57:24 · 15 answers · asked by abhilasha b 2

2007-03-30 19:39:12 · 5 answers · asked by Anonymous

2007-03-30 19:35:52 · 7 answers · asked by Anonymous

what is the biggest organ in the human body?!

2007-03-30 17:19:12 · 12 answers · asked by love21 1

i cant stand long. i think i will ejaculate only 10seconds playing with my pxnis while when i watch the porn films, the actor can stand for 2 to 5 minutes entering n exiting the pxssy.
why do i ejaculate very fast?
someone please help..
thanks

2007-03-30 16:32:24 · 8 answers · asked by Anonymous

We all know what the colors of the rainbow are. It's been nailed into our heads since childhood. Is there a possibility that everyone sees the colors differently? So if you can see through another person's eyes the colors you know are changed into other colors? could it be that we cannot communicate to each other what we see because we all identify it by the same name and it's impossible to describe a color without comparing it with other colors?

2007-03-30 13:56:05 · 11 answers · asked by didida 2

plese help!

2007-03-30 13:55:00 · 24 answers · asked by army_dog96 1

I'm just curious to find out because I'm sure I've heard of this before. We have a debate going on between my wife and myself. I think we do and she thinks we dont. May the best man WIN!!!! hehe

2007-03-30 13:53:11 · 9 answers · asked by Anonymous

2007-03-30 13:21:28 · 14 answers · asked by Anonymous

If evolution is true then which evolved first (how, and how long; did it work without the others)?

* The digestive system, the food to be digested, the appetite, the ability to find and eat the food, the digestive juices, or the body’s resistance to its own digestive juice (stomach, intestines, etc.)?
* The drive to reproduce or the ability to reproduce?
* The lungs, the mucus lining to protect them, the throat, or the perfect mixture of gases to be breathed into the lungs?
* DNA or RNA to carry the DNA message to cell parts?
* The termite or the flagella in its intestines that actually digest the cellulose?
* The plants or the insects that live on and pollinate the plants?
* The bones, ligaments, tendons, blood supply, or muscles to move the bones?
* The nervous system, repair system, or hormone system?
* The immune system or the need for it?

2007-03-30 13:11:09 · 14 answers · asked by RcJones 2

2007-03-30 12:07:33 · 5 answers · asked by Korny Kaucasian Kraker 1