Does anyone know of any (the names) microbes in dirty water??

How Complex of cells in the brain can think ,if it is correlated with any of the undefined Envioronmental factors??

French scientist Payen and Persoz have a experiment which helped them found amylase,can someone tell me how they did it.

please i would like to know the causes of anaemia . some of it symptoms. and then how to cure it . is it soo good to use herbal medicine in curing it. please prescribe a medicine that can treat it best for me. please kindly send it to my mail . hisroyallaud_mowa@yahoo.com . iwould be counting on your co-operation to help my brother who is every in need.

dear science in school team,

iam gilang,
Iam Indonesian,

I've got a heavy home work from my lecturer.

she asked me to get some informations about "chocolate can enhanced our life span"

S.I.S team, could you help me to searching for it??

I've submitted my homework in next Saturday,
so, Iam very need it immediately.

please, help me.

thanks before.

sorry if my english isn't good enough!

e-mail: gilang_pbahar@yahoo.com

why are the sky is blue?

I am helping an IB student making his extended essay in Biology. He wants to prove that a certain population in my country matches better the Hardy Weinberg model than other. The problem he has is that he does not know how to proceed to take the samples in order to get to know the genotypic frequencies. How many individuals should be enough to get a good sample?
In order to determine if the populations are in Hardy Weinberg equilibrium should he sample both the parental generation and the daughter generation or just one of them? I have seen examples of problems in which you just need to know the genotypic frequency of one generation and from there you can infer if the population is at equilibrium. Can you explain to me that case?