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Science & Mathematics - 5 November 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

A significant diff. btw/ eukaryotic and prokaryotic DNA is the presence of methylation of the prokaryotic DNA. What is the purpose of the methylation?

2007-11-05 06:10:58 · 2 answers · asked by damigurl05 1 in Biology

2007-11-05 06:09:21 · 4 answers · asked by malibu0108 1 in Mathematics

2007-11-05 06:08:23 · 8 answers · asked by lexy 2 in Geography

can someone tell me the heat of combustion for liquified hydrogen?

2007-11-05 06:05:35 · 2 answers · asked by thesilvernewt 2 in Chemistry

a- 1.6 m/s
b- 340 m/s
c- 1600 m/s
d- 26 m/s


??

2007-11-05 06:04:11 · 5 answers · asked by Emma S 1 in Mathematics

are pecan trees and walnuts trees related?
and what is the consentration of iodine in each?(tree and/or nuts)
thanks

2007-11-05 06:04:11 · 2 answers · asked by turk6060 3 in Botany

2007-11-05 06:03:16 · 22 answers · asked by Anonymous in Astronomy & Space

The metal is for a capsule going to the centre of the earth - please help!!!!!!! Its really urgent!!!!!!

2007-11-05 06:01:03 · 4 answers · asked by Anonymous in Engineering

if a typical somatic cell has 32 chromosomes, how many chromosomes are expected in each gamete of that organism? pls explain. how would the answer differ from if the cell demonstrated nondysjunction.

2007-11-05 05:57:16 · 2 answers · asked by damigurl05 1 in Biology

Dang. This one stumped me.

2007-11-05 05:56:08 · 4 answers · asked by John Cikkaaaaa 1 in Mathematics

Its to do with rational exponents.

2007-11-05 05:54:49 · 4 answers · asked by marcus33 1 in Mathematics

2007-11-05 05:46:40 · 23 answers · asked by notaryah 2 in Geography

2007-11-05 05:45:09 · 5 answers · asked by b p sanker 1 in Zoology

my hours is 31.0 that is why i have GPA 3.48, but how did my school came out of 108 pts.

2007-11-05 05:44:21 · 2 answers · asked by M_J 1 in Mathematics

2007-11-05 05:41:29 · 5 answers · asked by marcus33 1 in Mathematics

Hello, we just started with these friendly little critters in math today, and the teacher promised a 10 class mark (A+) if anyone could correctly write this function in the following format:

[-A if x > or = z
|A|=
[A if x < z

That's the best I can explain it, so if you can grasp my question please try to answer it. The function she wants us to write correctly is:

f(x)=| x*2 -5x +4 | (*Meaning elevated to).

The second degree equation gives two results: +4 and +1. Kudos in advance for the help!

2007-11-05 05:39:13 · 2 answers · asked by Murodski 1 in Mathematics

Distinguish among interphase, mitosis, and cytokinesis.

2007-11-05 05:38:29 · 7 answers · asked by Anonymous in Biology

Please Explain What It Does To THX!!!

2007-11-05 05:36:13 · 15 answers · asked by Anonymous in Biology

Okay, I know you solve for x, but that would leave me with log 3 (13) and I don't think that's correct. Please let me know what you think. Thanks.

2007-11-05 05:33:33 · 3 answers · asked by Anonymous in Mathematics

They will be taken in the rapture, will those people be watching the wicked go through the great tribulation that is coming on earth????

2007-11-05 05:28:55 · 15 answers · asked by Anonymous in Astronomy & Space

A manufacturing factory produces a product, which can get the profit of $1000 for every unit that sold (that unit is non-defective). The factory produces 11 units of that product with one defective unit. In order to find the defective unit, the factory uses an investigating scheme on production items before they are sold.

The investigating scheme as follow:
- More than one unit can be checked for every single checking process.
- Every single checking process will cost $1000.
- After the checking process, each of the non-defective product can be sold and gain the profit of $1000.
- During the checking process, if the defective unit is investigated, all the units in that checking process will be considered as defective item and cannot be sold.

Based on the investigating scheme, what is the best strategy for the factory so that they can gain the maximum profit even in the worst situation. Find the profit that they can gain (in the worst situation).

2007-11-05 05:28:25 · 2 answers · asked by Anonymous in Mathematics

A. eclipes of the moon.
B. phase of the moon.
C. an increase in apogee.
D.an increase in perigee.

2007-11-05 05:27:39 · 4 answers · asked by Haley C 1 in Astronomy & Space

2007-11-05 05:27:35 · 10 answers · asked by QuestionAsker123 1 in Astronomy & Space

summation notation symbol (n=3 to infinity) 1/(3^n)
summation notation symbol (n=6 to infinity) (6^n)/(7^n)
please give a detail explanation i really need the help i have a quiz on this tomorrow

2007-11-05 05:25:48 · 2 answers · asked by Anonymous in Mathematics

A. Earth is rotating.
B. Earth is revlving.
C. the sun is rotatung.
D. the sun is revolving.

2007-11-05 05:24:01 · 5 answers · asked by Haley C 1 in Astronomy & Space

In terms of ecological systems, what is the difference?

2007-11-05 05:23:26 · 1 answers · asked by Anonymous in Biology

Will we explore the universe some day...those that make heaven?.. Will we rule other planets that maybe have life on them???? Are there planets that have beings living on them???? What do you think about all this???

2007-11-05 05:22:54 · 11 answers · asked by Anonymous in Astronomy & Space

Let S be an n-simplex. So, intuitively, S's intersection with a subspace of R^n is either empty or another simplex. Can I say it for sure (ie, is the above statement provable)?

2007-11-05 05:18:14 · 1 answers · asked by andremsb 1 in Mathematics

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