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Biological classifacations; help!
Topic Started: Sep 15 2010, 09:28 PM (891 Views)
Dragon wasp
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okay i need some help to know what biological classifications are cause i think it is about time to find out...... :sad:

i feel really stupid right now... :confused: >.<

oh and thanks.
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Pando
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http://en.wikipedia.org/wiki/Animalia

Go down to the "Phyla" part. You have the whole texonomy system of Animalia.

Classifications are a classification system for animals based evolutionary wise. Goes from Domains (Eukarya, Eubacteria, and Archea) to Species.

Try this link for general taxonomy: http://en.wikipedia.org/wiki/Biological_classification
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Empyreon
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Are you plausible?

Biological classifications are just scientific names given to a species or group of species so that all scientists everywhere can know exactly which species they are talking about.

http://en.wikipedia.org/wiki/Biological_classification

Edit: You beat me to the punch!
Edited by Empyreon, Sep 15 2010, 09:35 PM.
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food for thought
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Dragon wasp
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thanks guys!
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Carlos
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As always, I have a strong disdain for taxonomy and I suggest cladistics instead.

Believe me, it is very simple and easy to understand; only those infected by taxonomic thinking think its hard.
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Ddraig Goch
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I've never understood the difference. To be honest, I've been using the terms interchangably.
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colddigger
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You really shouldn't though... It's like the difference between a regular car engine and a diesel...
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Carlos
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More like the difference between a car that works and a pile of junk. Really, taxonomy is barely compatible with evolution.
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Holben
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Just get a load of cladograms then study them.

Linnaen... doesn't bear thinking about.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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Empyreon
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Are you plausible?

http://en.wikipedia.org/wiki/Cladistics

Read up on both and decide for yourself.
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Pando
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http://upload.wikimedia.org/wikipedia/commons/2/23/Phylogenetic-Groups.svg

I prefer taxonomy. No "monophyly, paraphyly" and "polyphyly", everything is done from an evolution point of view.

If I am wrong, please correct me. But I really can't see how cladistics is better than taxonomy.
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Carlos
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If you actually knew how both things work, believe me, it would be much different.

But I will provide an easy example: the evolution of birds.

In taxonomy, birds are considered a seperated class, while dinosaurs are within Reptilia. This poses a huge ass problem because, since birds evolved from dinosaurs, it is extremely hard to draw the line between Aves and Reptilia. In cladistics, on the other hand, since it doesn't recognise classes and all that crap and sees the descendents as part of the same group, birds are still dinosaurs, and one does not need to drawn the line in anything, just to classify the different maniraptor groups in clades.

This, again, works very well because cladistics works on an evolutionary point of view, while taxonomy doesn't. Thus, in taxonomy, which was made in consideration of modern species alone, doesn't recognise the presence of chance, and thus one has to make distinctions between classes and orders and all stupid shit that really doesn't exist. For instance, where to make the line between brown bears and polar bears, when polar bears seem to be an offshot of brown bears and some brown bear populations are closer to polar bears than other brown bears?
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http://s1.zetaboards.com/Conceptual_Evolution/topic/5724950/

Terra Alternativa:
http://s1.zetaboards.com/Conceptual_Evolution/forum/460637/

My Patreon:

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Empyreon
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Are you plausible?

Cladistics illustrate a logical progression along evolutionary lines; as you point out, a bird is a dinosaur is a reptile is an amphibian is a reptile is a fish is a vertebrate etc. That integrated connection makes naming conventions very flexible but at the same time highly arbitrary. Taxonomy doesn't necessarily show the same relationships as seen in cladistics, but its naming system is much more clear and structured. Both have strengths and weaknesses and it's really only a matter of preference which one a person uses. I prefer to integrate the two so that taxonomy reflects cladistic relationships but can strongly isolate a particular group.
Take a look at my exobiology subforum of the planet Nereus!

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Holben
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Naming structure- clearly structured for the beginner maybe, but i feel that once you've grasped cladistics it follows much more and the names tell you a lot more about context. And from the context, the name will spring. Although not the species name. That must be found.
Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea.

"It is the old wound my king. It has never healed."
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Pando
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JohnFaa
Sep 17 2010, 03:23 AM
In taxonomy, birds are considered a seperated class, while dinosaurs are within Reptilia.
Not for me.

I think Empyreon has it right. Use both.
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