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Characteristic x-ray

Characteristic x-ray

(Science: microscopy) An x-ray having a unique energy that is emitted by an atom in the sample during its de-energization after ionization of one of its electrons by an incident electron.


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Re: A question from Cloning

... if a fungi cell is introduced into an egg cell of an insect, I could expect the cross product of the reaction to produce an insect with a fungal characteristic ( insect larva born with a hypha), OR , a fungus with an insect characteristic ( motile fungi). I would like to hear your valuable comments ...

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by koyal
Thu Jul 16, 2009 9:13 am
 
Forum: Cell Biology
Topic: A question from Cloning
Replies: 16
Views: 511

Why do Africans have large noses and lips?

... pops out from our teacher. So, do you agree on what i found? First off, it's a generalization. Not all Africans have large noses and lips. Characteristic facial feature vary from region to region in Africa. In West and South and some parts of Central Africa, those characteristics you stated ...

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by Luis
Fri Jul 03, 2009 8:28 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 5
Views: 670

Re: Biology is not a science

... us what life is to make it clearer some religions would say what makes us alive ie have life is our soul take this definition from wiki Life is a characteristic that distinguishes objects that have self-sustaining biological processes ("alive," "living"), from those which do ...

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by Jesse2504
Tue Jun 30, 2009 7:36 pm
 
Forum: General Discussion
Topic: Biology is not a science
Replies: 44
Views: 1426

Re:

... What is matter? What is the universe? They are all definitions which fit our current level of understanding of the phenomena observed by human characteristic senses in the environment at this point in time. We can define what ANYTHING is since it is we who observe it, nothing is the same to ...

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by Jesse2504
Wed Jun 24, 2009 12:14 pm
 
Forum: General Discussion
Topic: Biology is not a science
Replies: 44
Views: 1426

Re: Natural selection wrong due to cambrian explosion

... et al. now extend the chemical evidence for biomolecules from the previous 1700 million years to 2700 million years, by identifying biomarkers characteristic for cyanobacteria and eukaryotes in Archean rocks from rocks from Western Australia. The results show that a key attribute of eukaryotic ...

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by AFJ
Sat Jun 13, 2009 8:28 pm
 
Forum: Evolution
Topic: Natural selection wrong due to cambrian explosion
Replies: 29
Views: 937
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