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they exist without nuclei or cell walls

Do prokaryotes lack cell walls?

1 posted on 11/13/2001 8:20:22 AM PST by RightWhale
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To: *crevo_list
Bump for later inclusion in the Ultimate Resource ...
2 posted on 11/13/2001 8:24:52 AM PST by Junior
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To: RightWhale
Research on components of the brain's electrical signaling system has answered a basic question about our human evolution, confirming scientific belief that we two-legged, computer-using creatures are descended from prokaryotes -- cellular organisms so primitive and simple that they exist without nuclei or cell walls.

I'm not sure that I like the word "confirming" here, it implies a certainty that is incompatable with science. Perhaps its intended meaning isn't as such, but I'd be more comfortable with the word "affirming" or "reaffirming".

Perhaps I'm just too touchy, but "confirming" to me means that it is established as absolute truth, but nothing in science is established as absolute truth.
3 posted on 11/13/2001 8:38:24 AM PST by Dimensio
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To: RightWhale
Research on components of the brain's electrical signaling system has answered a basic question about our human evolution, confirming scientific belief that we two-legged, computer-using creatures are descended from prokaryotes -- cellular organisms so primitive and simple that they exist without nuclei or cell walls.

Actually, I think this refers to members of the Democratic Party.

FReepers are the direct work of the hand of God.

4 posted on 11/13/2001 8:39:42 AM PST by Senator_Blutarski
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To: RightWhale
I like to think we descended from Heavan.
5 posted on 11/13/2001 8:42:11 AM PST by rogers21774
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To: RightWhale
This has very profound implications for evolution," Lu said. "It appears the potassium channels in advanced brains and hearts of mammals have evolved from something like this bacterial channel.

It is not because the Sun is working like a fusion power plant that the fusion power plant evolved from the sun. These people are mixing science and biological functions with speculation on evolution. It's political non-sense.

8 posted on 11/13/2001 8:47:17 AM PST by lavaroise
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To: RightWhale
Do prokaryotes lack cell walls?

My aunt kept her prokaryotes in a cage in the living room.

10 posted on 11/13/2001 8:55:35 AM PST by Gumlegs
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To: RightWhale
Check out this page from the MIT Biology Hypertextbook.

Prokaryotes have a cell wall composed of peptidoglycan, a single large polymer of amino acids and sugar. Many types of eukaryotic cells also have cell walls, but none made of peptidoglycan.

11 posted on 11/13/2001 9:06:06 AM PST by 911
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To: RightWhale
Research on components of the brain's electrical signaling system has answered a basic question about our human evolution, confirming scientific belief that we two-legged, computer-using creatures are descended from prokaryotes -- cellular organisms so primitive and simple that they exist without nuclei or cell walls.

Utter nonsense - a bald assertion without foundation, and wrong.

20 posted on 11/13/2001 5:38:55 PM PST by Phaedrus
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