Resistance to a wide variety of insecticides, fungicides, antibiotics, antiviral drugs, and herbicides has recently evolved in hundreds of insects, fungi, bacteria, viruses, and plants. Why?

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Humans have better health practices, so these organisms are trying to keep up.

Humans are altering the environments of these organisms, and populations of these organisms are evolving by natural selection.

No new species are evolving, just resistant strains or varieties. This is not evolution by natural selection.

Mutations are on the rise.

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

Humans are altering the environments of these organisms, and populations of these organisms are evolving by natural selection.

 

answered Dec 28, 2012 by anonymous



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