Evolution: the Facts.

[six7s]

a different meaning: it that context it means

a different meaning: in that context it means

 

[six7s]

under a set of conditions that are no longer obtaining, for example

under a set of conditions that are no longer obtaining [insertSomethingHere], for example

 

[six7s]

for example a soil which devlops under tropical conditions

for example a soil which develops under tropical conditions

 

[six7s]

The identification of rocks as paleosol is not at all challenging

The identification of rocks as paleosols is not at all challenging

 

[six7s]

this allows geologists not just to recognize the fact

this allows geologists to not just recognize the fact

or... maybe...

this allows geologists to not merely recognize the fact

 

[six7s]

Once again Dr A: thanks for yet another informative read

 

[Dr Adequate]

Ah, six7's, my arch-nemesis ... we meet again.

Thanks.

Given that I know perfectly well how to spell "develop", I wonder why I misspell it so often.

---

I just found a real howler in Wicander's Historical Geology. I've emailed him.

 

[Dr Adequate]

under a set of conditions that are no longer obtaining, for example

under a set of conditions that are no longer obtaining [insertSomethingHere], for example

I meant "obtaining" in the sense of "present". I'll change it to "present".

 

[BenBurch]

Obtaining was a correct if archaic usage in that case.

 

[absit woo]

Evolution is obvious to anyone who thinks. After the Human genome project mapped a complete genome in 2003, it is simple to prove evolution to yourself.. If you really wanted to you could have your complete genome mapped and also the genomes of both parents. The average number of unique mutations between generations is between 200 and 300.

So after this is established you can then assume that if your genome contains mutations then your own offspring will contain genetic mutations within ITS genome.. Meaning that over time your own genetic lineage will incur visible changes. This is evolution.

Natural selection is when the environment dictates which genetic mutations survive, either because they are beneficial to survival or help reproduction. Factors for natural selection include predators and temperature. A genetic trait that allows an organism to survive predators will prevail over traits that hinder an organism. So a trait that prevails within a species is called an adaptation.

The early prokaryotic cells after having developed the ability to replicate, created an environment of competition by doing so. By chance two prokaryotic cells formed a symbiotic relationship where both cells specialised to a specific task. In time this symbiotic releationship developed to the point where one cell took control of the nucleic acids and the other became a simple cell body.. Random cell mutations between generations allowed some of these early eukaryotic cells to take in more energy and so they became more able to reproduce faster. So natural selection allowed the cells best at in taking energy and reproducing faster survive.. Life from then became a race to do just that. over 4billion years it is easy to see how this caused the massive variation we see today..

 

[Olowkow]

under a set of conditions that are no longer obtaining, for example

under a set of conditions that are no longer obtaining [insertSomethingHere], for example

I don't see why the intransitive use of "obtain" is so unpopular. It is one of my favorite verbs. "Conditions that no longer obtain...." is fine. "obtaining"...hmmm?

 

[dlorde]

I don't see why the intransitive use of "obtain" is so unpopular. It is one of my favorite verbs. "Conditions that no longer obtain...." is fine. "obtaining"...hmmm?

A kind of gerundive - i.e. verbal adjective? "The no longer obtaining conditions..." (just asking)

 

[Dr Adequate]

Aside fro grammar, I should like to draw your attention to my article on ...

[swiki]Marine Sediments[/swiki]

I would invite you especially to look at the map, because I evaded copyright problems by drawing the sodding map.

It took me a while. So please say something nice about the map.

 

[steenkh]

It took me a while. So please say something nice about the map.

I find the "sodding" map extremely well done. Looks nice too.

 

[pnerd]

Here's a collection of some good YouTube videos:

http://www.youtube.com/view_play_list?p=AC3481305829426D

 

[Dr Adequate]

Still waiting for six7s to point out all my typos ...

 

[pakeha]

Thanks for such a clearly written article on
Marine SedimentsSW.
That was worth reading.
And the map is very neatly drawn, indeed.

 

[cyborg]

It's a nice map - but wouldn't PNG rather than JPEG make it nicer? It's a bit fuzzy around the text.

 

[six7s]

Still waiting for six7s to point out all my typos ...

I only noticed one

Four instances of calcereous

calcareous


------------

And one suggestion

the sediments that form pelagic clay, for example, get just about everywhere.

the sediments that form pelagic clay, for example, occur almost everywhere.

the sediments that form pelagic clay, for example, permeate almost all regions.

 

[Dr Adequate]

I only noticed one

Four instances of calcereous

calcareous

Oopsie. Thank you.

And one suggestion

the sediments that form pelagic clay, for example, get just about everywhere.

the sediments that form pelagic clay, for example, occur almost everywhere.

the sediments that form pelagic clay, for example, permeate almost all regions.

Thanks, but I think my way is better.