modern example of natural selection?? (1 Viewer)

[ballerinabarbie]

i can't find a modern example anywhere in my notes! what did u guys use? i'm totally confused

 

[mitochondria]

we did a case about the population of different variations of peppered moth in the Industrial Area in England. There are two main variations of peppered moths - white and black.. the black peppered moths was rare before the industrial revolution. However, the since the industrial revolution the population of white peppered moth decreased and the population of black peppered moth increased significantly.

This is due to pollution produced by factories... etc, which darkens their surroundings, the colour of white peppered moths before more contrasted with the envirioinment and this makes them easier prays for other animals such as birds. Meanwhile, the black coating of black peppered moths now helps them to blend into the surrounding, which favours their survival.

lol.. this is not so "natural" afterall

Hope that helps good luck!


found this for ya:
http://www.angelfire.com/nj3/mrschen/kettlewell.htm

 

[t-i-m-m-y]

natural selection:

-development of antibiotic resistance in bactera- btw u can use this example in many other places too like genetics...

 

[s2ophie]

yeah we did th peppered moths as well as antibiotic resistance and insecticide resistance. are you referring to the bit that says 'natural' in inverted commas? if so, i'd say my last two examples.

 

[trinity]

oh isnt it also rabbits with myxomatosis and the calici virus? how they kept getting resistant to it?

 

[Azn fairies]

Originally posted by s2ophie
yeah we did th peppered moths as well as antibiotic resistance and insecticide resistance. are you referring to the bit that says 'natural' in inverted commas? if so, i'd say my last two examples.

the moth example is not modern is it?..i though mayeb the spraying of pestacides

 

[babydoll_]

I used the moths; it seems fine

 

[ballerinabarbie]

oh ok... the heinemann textbook has all those in there (peppered moth, rabbits, antibiotic resistance) thanks guys!

 

[*hopeful*]

we used mosquitoes and DDT, its pretty simple 2 learn but so is d peppered moths 1 as well and d others

 

[yalando]

Wompoo Fruit Dove (Y)

 

[thongetsu]

lol did you see the dates of the posts? sorry but you're 7 years late.

 

[vanush]

YEAH. Times have changed. The black moths are a LIE. Since 2003, evolution ha been proved incorret NUMEROUS TIMES

 

[Carmen909]

We did flies with flyspray eg Mortein and Pea Beau .:uhhuh:

 

[iRuler]

We did flies with flyspray eg Mortein and Pea Beau .:uhhuh:

lol did you see the dates of the posts? sorry but you're 7 years late.

.

 

[fullonoob]

there is a good explanation of natural selection (for peppered moth) in the bio dot point book.