Homework Help: Science - Biology

Posted by Rana on Monday, October 6, 2008 at 10:36pm.

After spraying crops with DDT for several years, farmers found that populations of insect pests rebounded. One reason was that the insects had developed resistance to the insecticide. Suggest another reason, based on what you know about populations, pyramids, predators, and competitors.

Science - Biology - bobpursley, Tuesday, October 7, 2008 at 2:46am
I wonder what had happened to the predators of the insects after several years of not eating.

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