Can some1 PLZ plz help me i can't find info on this.. its for bio (1 Viewer)

[Char..]

explain how darwin/wallace's theory of evolution by natural selection and isolation accounts for divergent evolution and convergent evolution.

 

[Lucid Scintilla]

WIKIPEDIA IS YOUR FRIEND.

Well, ... I could actually do something, rather than highlight, research, but yeh... so, anyway:
http://en.wikipedia.org/wiki/Convergent_Evolution
http://en.wikipedia.org/wiki/Divergent_evolution
http://en.wikipedia.org/wiki/Theory_of_Evolution
http://en.wikipedia.org/wiki/Natural_selection

Now, from there, if you haven't got enough info, I suppose I could do a bit more...

Also, someone's got to reply soon!

 

[Char..]

thats heaps good but im still too dumb.. im trying to use it but cld u tell me how darwin/wallace's theory of evolution by natural selection and isolation accounts for those theories cuz i dnt gte wat that means.. u dnt have 2 if its 2 hard

 

[dion7789]

explain how darwin/wallace's theory of evolution by natural selection and isolation accounts for divergent evolution and convergent evolution.

Natural selection for divergant evolution: Organisms of the same species, isolated in different environments, may evolve to orm new species. Occurs as a result of isolation and adaption by natural selection.

Eg/ Ancestor...forms..

1) Red kangaroo on inland plains
2) Rat kangaroo in the desert
3) Pademelon in thick scrub or dense moist undergrowth
4) Tree kangaroo in tropical rainforests.


Essentially is is where one ancestor grows up in differnet environments and those suited to the environment survive and those who dont die--> survival of the fittest

 

[dion7789]

Convergant evolution: opposite of divergant...

In this different species that grow in same environment evolve similarly...eg dolphin (A mammal) and shark (A fish) appear similar but are only distantly related. They both have structural characteriustics suited to aquatic life eg/ fins/flippers, streamlined body.

 

[Char..]

Dw abt it i finished it now.. thnx anyways

 

[Char..]

Convergant evolution: opposite of divergant...

In this different species that grow in same environment evolve similarly...eg dolphin (A mammal) and shark (A fish) appear similar but are only distantly related. They both have structural characteriustics suited to aquatic life eg/ fins/flippers, streamlined body.

sorry i just saw that u wrote something.. thnx heaps.. i finally finished so im heaps happy now.. thnx for ur help

 

[Lucid Scintilla]

thats heaps good but im still too dumb.. im trying to use it but cld u tell me how darwin/wallace's theory of evolution by natural selection and isolation accounts for those theories cuz i dnt gte wat that means.. u dnt have 2 if its 2 hard

Oh, I never meant that I couldn't do it; in fact, this was covered in my year nine year, and then, to all the students in my cohort in year ten.

Ye-um... dion's already covered most of it, with explanation, and example.
Good job.

 

[dion7789]

lol well i may be of help if anyone else has this same Q...any other bio questions u have post here or pm me and i will try to answer b4 u find the answer the harder way lol

 

[dion7789]

Oh, I never meant that I couldn't do it; in fact, this was covered in my year nine year, and then, to all the students in my cohort in year ten.

Ye-um... dion's already covered most of it, with explanation, and example.
Good job.

Thanks i feel so privelaged to get a good job i never get a good job

 

[Char..]

回复: Re: Can some1 PLZ plz help me i can't find info on this.. its for bio

Hey can u plz help me with this.. how does Dna control the production of polypeptides
thnx heaps!

 

[Survivor39]

Re: 回复: Re: Can some1 PLZ plz help me i can't find info on this.. its for bio

DNA is the template for polypeptide synthesis. It does not directly control the production as such. Enzymes are what control protein expression.