Biology - October 2007

2007-10-25 15:36:23 · 2 answers · asked by PigDestroyer23 1

is nature ever really in balance or are ecological systems involved in a process of constant change

2007-10-25 15:35:42 · 4 answers · asked by fengzengjason 1

yeh

2007-10-25 15:21:09 · 5 answers · asked by Anonymous

please

2007-10-25 15:17:49 · 1 answers · asked by Anonymous

Simple one or the other. Let the debate begin!

2007-10-25 15:15:42 · 22 answers · asked by Anonymous

pls answer my question good helper people b/c tomorrow (oct. 26, 2007) is my quiz day and idk what is the answer so pls help me understand this pls. thnx and plus i need to ask another bout the question again, How does the role of chlorophyll compare with the roles of CO2 and H2O? thnx

2007-10-25 15:11:14 · 6 answers · asked by Anonymous

2007-10-25 15:03:20 · 3 answers · asked by obstacle 1 1

2007-10-25 15:00:58 · 4 answers · asked by nadda 1

how traits are passed through the generations. ?
1. the idea of a gene, and how the genes of parents determine the genes of their offspring.
2. how the gene carries information in a way that enables it to be passed down to next generation.

2007-10-25 14:36:08 · 7 answers · asked by zechs 1

is it possible for a multicellular organism to survive in an anaerobic environment? explain.

2007-10-25 14:12:55 · 7 answers · asked by krisden 2

2007-10-25 13:54:03 · 5 answers · asked by Baby Gurl 2

PureBred tall plants with round seeds are crossed with purebred short plants with wrinkled seeds. Some of the offspring are then crossed with an unknown plant. The offspring from this second cross are 1/2 tall round and 1/2 tall wrinkled. What are the genoype and pheotype of the unknown plant?

2007-10-25 12:31:00 · 3 answers · asked by Eric 1

2007-10-25 12:20:51 · 2 answers · asked by tuan l 2

9th grade answer please!

2007-10-25 11:22:11 · 7 answers · asked by james kane 2

How many cells are present in a colony? How are the cells of a colony different and how are they alike?

2007-10-25 11:04:39 · 2 answers · asked by ghostywingz 5

I've worked at a neurohealth school for 20 years and I'd like to research the observations I have collected.

2007-10-25 10:46:31 · 3 answers · asked by Elizabeth S 1

Is it primary or secondary active transport? or neither?

2007-10-25 10:43:33 · 2 answers · asked by Anonymous

i'm sure you've all seen and heard of the woman who got maggots in her brain...

http://images.google.com/imgres?imgurl=http://users.qld.chariot.net.au/~sanjo/tn_horse_dog.jpg&imgrefurl=http://www.joelmackey.com/entertainment/shocking/animalcrossbreeds.html&h=305&w=400&sz=30&hl=en&start=52&um=1&tbnid=IskAkeNRcNWw3M:&tbnh=95&tbnw=124&prev=/images%3Fq%3Dtallest%2Bdog%2Bon%2Bearth%26start%3D40%26ndsp%3D20%26svnum%3D10%26um%3D1%26hl%3Den%26sa%3DN

how did they get there?!?! and how could you prevent maggots from doing so??? i'm really grossed out right now...

2007-10-25 09:40:34 · 1 answers · asked by Anonymous

2007-10-25 08:11:14 · 2 answers · asked by Jaclyn 1

2007-10-25 07:45:32 · 3 answers · asked by benam 1

There are many archaeological findings. All they mean is that something existed. They do not mean that something evolved "FROM" ...

My question is only about possible factual evidence for the "FROM" part. How do we know what evolved FROM what, without relying on theoretical arguments?

(I am interested only in the "evolution of new species" part. Not in the natural selection of populations WITHIN a species, which is well known and understood.)

In my field, nuclear physics, evidence must be clear cut, without hand waving. There is room for theories too, but, they must be clearly labeled as theories. Anyone who tries to label a theory as fact gets booted out...

So, can someone educate me on the factual-experimental evidence for the "FROM" part of evolution?

2007-10-25 07:14:38 · 7 answers · asked by brandlet 2

Why or why not. Sources would be helpful.

2007-10-25 06:44:29 · 3 answers · asked by bumblebee 4

2007-10-25 06:26:11 · 2 answers · asked by cmc7486kay 1

2007-10-25 06:25:37 · 1 answers · asked by cmc7486kay 1

Ok we did an experiment on agglutination, whereby rabbits had been immunized with sheep red blood cells. We measured the agglutination titres of immune and non immune sera.

During the experiment we set up control wells, containing 0.2ml dilution buffer and 0.2ml cell suspension. The result was negative. But what is the purpose of the control wells, what does this prove? And how would I write this in my report? Thanku, just really stuck on this bit..xx

2007-10-25 06:21:15 · 2 answers · asked by Anonymous

NEW YORK - James Watson, famous for DNA research but widely condemned for recent comments about intelligence levels among blacks, retired Thursday from his post at a prestigious research institution.

Watson, 79, and the Cold Spring Harbor Laboratory in New York announced his departure a week after the lab suspended him. He was chancellor of the institution, and his retirement took effect immediately.

Watson shared a Nobel Prize with Francis Crick and Maurice Wilkins in 1962 for co-discovering the structure of the DNA molecule. He is one of America's most prominent scientists.

In his statement Thursday, Watson said that because of his age, his retirement was "more than overdue. The circumstances in which this transfer is occurring, however, are not those which I could ever have anticipated or desired."

http://news.yahoo.com/s/ap/20071025/ap_on_sc/controversial_scientist

2007-10-25 06:10:24 · 12 answers · asked by Captain Tomak 6

-Meiosis reduces the number of chromosomes by half.
-Meiosis is a purely random division of chromosomes.
-Meiosis does not change the number of chromosomes.
-Meiosis allows chromosomes to split in half.
-Meiosis doubles the number of chromosomes.

2007-10-25 05:54:41 · 4 answers · asked by Anonymous

2007-10-25 04:18:11 · 1 answers · asked by Anonymous

I'm doing biomedical science at degree level. and we have to writeup the practicals carried out. Can anyone give me details and criteria of what a excellent written report will include.. Thanku..xx

2007-10-25 04:08:58 · 2 answers · asked by Anonymous

I am quite confused with this. I have asked this question earlier in a different way for which I was badly ridiculed. I really want to know the truth behind this. Is everyone one in this world inclined to procreate? Is there a strong physical urge to do so? Pleasde help. I am quite confused. I wish I never have children. I would be lot more happier without them? I have seen many woman worry a lot when they finf out they cannot conceive. Is this the same for men? Is it a biological urge?

2007-10-25 03:52:02 · 8 answers · asked by Pratap 3