Science & Mathematics - 14 November 2007

hey..
for a nat select question i got for an assessment i have to pick an example of natural selection.....
i was gonna use the peppered moth but my book isays it is well known but recently discredited
does that mean i shouldn't use it :S

2007-11-14 19:44:33 · 5 answers · asked by Anonymous in Biology

my cousin who is in, high school, has a report due which involves creating their own kind of solar system. taking the task to heart, she then came up with:

2 suns (blue and red), 13 planets with her "home world" being the 5th one, the 4th and 6th planets crossing the 5th planet's orbit from time to time, the 5th planet has a ring around it with 4 different moons, the 5th planet has the usual 4 seasons, day and night, and an ice cap only on its northern hemisphere

now she wants me to come up with the number of days it takes for the planet to make a year, how often the 4th and 6th planets cross the 5th's orbit and how far the 2 suns are from the planets and each other.

needless to say, this is out of my league, so help! please? ;o)

2007-11-14 19:35:18 · 5 answers · asked by michael q 1 in Astronomy & Space

"Women who attend religious services are about 80 percent as likely to to die as those not regulary attending. Discuss tthe extent to which each of the following three apply to this quote:
1. the baseline risk is missing
2. the time period of the risk is missing
3. the reported risk is not necessarily your risk

Any help would be appreciated. Thanks.

2007-11-14 19:34:55 · 1 answers · asked by Chris 3 in Mathematics

2007-11-14 19:27:55 · 10 answers · asked by Fish Man! 6 in Mathematics

log(sub 500)250

I really don't understand logarithms at all.

Explain??

2007-11-14 19:19:27 · 3 answers · asked by Abby 1 in Mathematics

Examples of these clouds are cirrus, cumulonimbus, stratus, nimbostratus. Does anyone have any ideas on how to memorize the clouds (there are more then what I listed)?Please keep in mind that I want a technique that can help me memorize it from top to bottom. Thanks.

2007-11-14 19:15:44 · 2 answers · asked by Anonymous in Weather

follow me on this one: now i beleive in god ok..but
for these skeptics say these ufo are not real then how do they believe in god if they have never seen him?

just to let the ignorant people know -i do believe in god.
we have never found the actual skeleton of jesus but they still believe in him
there are hundreds of thousands of REAL videos around the world and pictures yet they still say that ufos are not real kinda redundant if u ask me.

2007-11-14 19:13:11 · 6 answers · asked by Anonymous in Astronomy & Space

2007-11-14 19:05:34 · 17 answers · asked by Anonymous in Paranormal Phenomena

1. describe the evidence supporting the existence of a super-continent
2. describe how the movement of the earth's plates led to the formation os pangea, laurasia and gondwana
3. give some examples of landforms created by faults and folds
4. describe some geological factors that led to the evolution of austalian fauna and flora.

PLEASE HELP!!
any answer wil do =]
thanks xxx

2007-11-14 18:58:12 · 2 answers · asked by Anonymous in Earth Sciences & Geology

cats, dogs, birds, giraffes..hairy all over. but people..we're funny looking compared to the rest of the animal kingdom.

2007-11-14 18:52:16 · 4 answers · asked by dothehustle_87 1 in Zoology

The deli, a few blocks from my apartment, was selling these 'flowers'. They looked like little cabbages on stalks. Some were purple and others were pale green. The owner couldn't tell me their name. Do you know?

2007-11-14 18:42:54 · 9 answers · asked by LUCKY3 6 in Botany

Given

x(k+2) = ax(k+1)+bx(k)
+ce(k+1)+de(k)

for all integer k > 0, where a, b, c, and d are known constants.

Express x(k) in terms of x(1), x(2), e(1), e(2)..., e(k-1).

2007-11-14 18:40:10 · 1 answers · asked by Anonymous in Mathematics

2007-11-14 18:38:50 · 11 answers · asked by Bala 2 in Astronomy & Space

This is the only problem I can't figure how I got wrong on my last test.

1.) A lakefront runs east-west. A man in a rowboat is 5 miles due north of point A on the shore. He wishes to get to B, 5 miles due east of A, in the least time. He is able to row 3 miles per hour and walk 5 hour. What is the minimum time for the trip in minutes?

2007-11-14 18:36:31 · 4 answers · asked by Broken heart <3 1 in Mathematics

Help Me with this problem its about arithmetic sequence it says " Find the term and give a formula for the sequence".

1. The 10th term is 31; 14th term is 43

2007-11-14 18:35:50 · 4 answers · asked by rambo 1 in Mathematics

like if they were to be one walking around would he be able to bond with you or try to eat you??

2007-11-14 18:34:01 · 9 answers · asked by Age 1 in Astronomy & Space

2007-11-14 18:30:26 · 14 answers · asked by 1/6,833,020,409 5 in Astronomy & Space

2007-11-14 18:28:18 · 4 answers · asked by Shashi Ranjan 2 in Chemistry

2007-11-14 18:13:51 · 5 answers · asked by I ♥ my boyfriend! 5 in Weather

Please show equation used and steps.
The manager of an Eckerd drug store expects to sell 600 bottles of a certain deodorant each year. Each bottle costs the manager $4.00 and the ordering fee is $30 per shipment. In addition, it costs .90 cents per year to store each bottle. Assuming that the deodorant sells at a uniform rate throughout the year and that each shipment arrives just as the last bottle from the previous shipment ids sold, how frequently should shipments of the deodorant be ordered to minimize the total cost?
If a graph was made with cost function as a function of x (where x represents the frequency of shipments). How would this be done?
Please show equation used and steps.

2007-11-14 18:09:31 · 2 answers · asked by Anonymous in Mathematics

Please show equation used and steps.
You need to fence in a rectangular play zone for children. What is the maximum area for this play zone if it is to fit into a right-triangular plot with sides measuring 4 meters by 12 meters?
If a graph was made with area function as a function of x( where x represents the length of the play zone. How would this be done?
Please show equation used and steps.

2007-11-14 18:00:47 · 1 answers · asked by Anonymous in Mathematics

2007-11-14 17:56:28 · 4 answers · asked by holly f 3 in Biology

A merchant pays duty on certain goods at three different places. At the first he gives 1/3 of goods, at the second 1/4(of the remainder), at the third 1/5(of the remainder). The total duty is 24. What was the original amount of goods???

I am confused?? Do I multiply all the fractions, if so why? Do I subtract?? Is the answer 40? Is the answer 1440? WHY AND HOW PLEASE???

2007-11-14 17:55:56 · 10 answers · asked by busy bee 2 in Mathematics

2007-11-14 17:54:46 · 9 answers · asked by holly f 3 in Biology

Things you know or have heard about/stories

2007-11-14 17:54:44 · 10 answers · asked by Age 1 in Astronomy & Space

2007-11-14 17:51:20 · 4 answers · asked by Anonymous in Chemistry

what subcellular structure is involved in translation? Of what two types of molecules is it composed?

2007-11-14 17:50:26 · 3 answers · asked by Anonymous in Biology

It has almost been a year now and I am coming to realize that I am seeing the number 304 lately alot mainly on digital clocks its just like every time I seem to look at the clock it is 304 every time I'm starting to think that I am going crazy I started having thoughts like maybe I need to play the lotto or it 304 would be the time I die. I even thought maybe if I flip the number upside down I might get something from it but when I did that it read HOE and that definitely isn't the case so what is really going on. I thought I was the only one but after doing my research online thats not the case but I keep reading alot of different things about the meaning but now I'm just confused and spooked can someone please help me.

2007-11-14 17:45:19 · 7 answers · asked by Anonymous in Paranormal Phenomena

a and b are constants. additional information given was acot(theta 1) + bcot(theta 2) = 150. I know how to differentiate L, but I just can't explain why theta 1 would equal theta 2.

2007-11-14 17:43:33 · 2 answers · asked by theone 2 in Mathematics

I have a benzene ring with a -CO2CH3 (ester) at position one, and a -NO2 group at position three and five...is this more polar or less polar compared to:
a benzene ring with only the -CO2CH3 group
and a benzene ring with the -CO2CH3 group and one NO2
group at the third position?

2007-11-14 17:40:45 · 1 answers · asked by xsxplayboixsx 1 in Chemistry