Science & Mathematics - 21 January 2007

What is the relationship between pulmonary capillary length and gas exchange (oxygen and carbon dioxide)?

2007-01-21 11:14:33 · 2 answers · asked by ksneo627 4 in Medicine

Do they put their own health at risk...i mean...because of radiation involved? If not, why is it then that they get paid so much?!

2007-01-21 11:13:36 · 6 answers · asked by Anonymous in Medicine

Single celled organisms, jelly fish, etc.....no brain, yet they acquire food and move in response to stimuli.....how??

2007-01-21 11:10:16 · 5 answers · asked by michelle 5 in Biology

Does anyone know any safe approaches?

2007-01-21 11:09:45 · 4 answers · asked by ibid 3 in Biology

A compound of P and S contains 27.87% P and 72.13% S. The molar mass of the compound is 223.3 g/mol. Calculate its molecular formula.

2007-01-21 11:09:05 · 2 answers · asked by Joann 2 in Chemistry

350, 800, 2000, 8600, 18500, 35000, 90000, 165000. I'm looking for a formula to calculate the next number in the sequence.

2007-01-21 11:08:22 · 10 answers · asked by chriscrew1983 1 in Mathematics

what external feature of the crayfish reminds you of the annelids?

2007-01-21 11:08:18 · 3 answers · asked by Anonymous in Zoology

2007-01-21 11:06:43 · 7 answers · asked by Rimi M 1 in Chemistry

2007-01-21 11:06:25 · 5 answers · asked by say1973@sbcglobal.net 1 in Geography

what are, long streaks of bright light caused when a meteoroid gets close to the ground as it's burning up, called???? please help

2007-01-21 11:06:14 · 11 answers · asked by Rebecca A 1 in Astronomy & Space

in text an 8th grader can understand.. i'm trying to comapare it to a job or roll of a recording studio.. I've looked it up, and googled it, but they don't give smooth, and if they do, its in smart smart speak. I DO NOT WANT ROUGH OR JUST ER (endoplasmic recticulum). If you have the basic jobs of the SER (smooth ER) that'd be helpful, I already know RER
thanks

2007-01-21 11:05:01 · 5 answers · asked by Carnation 2 in Biology

Im studying for a midterm and don't know how to do this.

2007-01-21 11:04:03 · 2 answers · asked by Anna P 1 in Mathematics

When i get an equation from stat and calc..like a quadratic or something..i should be able to press vars...y vars..function..y1 and paste it into my y=, but it says "err: invalid"

what do i do?

2007-01-21 11:04:00 · 4 answers · asked by Poj23 2 in Mathematics

2007-01-21 11:03:41 · 4 answers · asked by les g 1 in Mathematics

8 Fe + S8 ==> 8 FeS
what mass of iron is needed to react with 16.0 grams of sulfur?

how many grams of FeS are produced?
please help i am having a lot of trouble with these equations

2007-01-21 11:03:25 · 7 answers · asked by J.r. 3 in Chemistry

I am thinking about getting nu-lasik surgery at northern laser vision centre in chatswood. has anyone had this? what was your experience. I am a little nervous about this, so would like some information from people that have actually had it or know someone who has.

2007-01-21 11:02:56 · 5 answers · asked by Minerva 5 in Medicine

ok, well i asked my mom if she could help me with one of my math problems, but she knows nothing about algebra. So the problem is, It is the end of the semester and the clubs at school are recording their profits. The Science Club started out with $20 and has increased its balance by an average of $10 per week. The Computer Club saved $5 per week, but started out with $50 at the beginning of the semester. The Math Club was just formed this year and managed to raise $15 per week.

a) Create an equation for each club. Let x represent the number of weeks, and y represent the balance of the accounts

I'm trying to figure out the equation for the computer club. can you tell me if this equation is right or wrong, y=50-5x? yes, no?

2007-01-21 11:00:46 · 5 answers · asked by ☆★♪♫Caitlin♫♪★☆ 2 in Mathematics

(Alka-Seltzer)

2007-01-21 10:59:31 · 6 answers · asked by fwc95 1 in Chemistry

A.Population
B.gene pool
C.genotype
D.niche

2007-01-21 10:59:28 · 3 answers · asked by georgia_gurl345 2 in Biology

buirng - means that the substance combines with oxygen.

2007-01-21 10:58:59 · 5 answers · asked by xoxsoccerloverxox 1 in Chemistry

Determine the value of h such that the matrix is the augmented matrix of a linear system with infinitely many solutions.

[3 -4 l 4]
[9 h l 12]

2007-01-21 10:58:55 · 1 answers · asked by I S 1 in Mathematics

with a 16 games schedule (32 teams)

2007-01-21 10:58:13 · 1 answers · asked by Troy G 2 in Mathematics

Imagine a chain of people holding hands the longest ever. So the first answerer says ONE and the next TWO and so on. Will the chain of people be long and who will be the first to say the wrong number? The 10 points goes to the number drawn at random so good luck.

2007-01-21 10:54:02 · 4 answers · asked by Exterminator 4 in Other - Science

I know you divide it by 4 but i forgot what is the answer when you get the remainders what are the answers. i tried to read the book but couldn't understand. thanks

2007-01-21 10:52:21 · 7 answers · asked by ccutestuff2001 2 in Mathematics

A.Natural Selection
B.Artificial Selection
C.Convergent selection
D.Phenotype

Thanks.

2007-01-21 10:51:32 · 3 answers · asked by georgia_gurl345 2 in Biology

Do you think that coal seams could develop in Antartica???

2007-01-21 10:51:09 · 3 answers · asked by Anonymous in Earth Sciences & Geology

http://www.thecosmicgift.com/images/blog/1994_pulitzer_prize_photo.jpg

2007-01-21 10:49:37 · 3 answers · asked by Princess1988 1 in Zoology

The intensity of the Sun's rays at a place is determined by the time of year and the _____ of the place.

2007-01-21 10:48:20 · 4 answers · asked by Justin 6 in Weather

2007-01-21 10:48:12 · 2 answers · asked by rockbuilders 1 in Chemistry

Does it have something to do with global warming? Are they anti-American?

2007-01-21 10:46:27 · 4 answers · asked by Bena 2 in Biology