Question

Bed bugs have become resistant to even this chemical pesticide. What happened that allowed the bug population to increase? A) the chemicals used currently are weaker B) the chemicals no longer can penetrate bed bugs brains C) the bed bugs of today are exactly the same as the bed bugs of fifty years ago D) the bed bugs that survived the DDT years ago, reproduced new generations of chemical resistant offspring

Answer 1

Answer:

the bed bugs that survived the DDT years ago reproduced new generation of chemical resistant offspring.

Answer 2

Bed bugs have become resistant to even this chemical pesticide because the bed bugs that survived the DDT years ago, reproduced new generations of chemical resistant offspring. (option D)

• The bedbugs are mostly eliminated by the chemical insecticides which contain DDT like chemicals.

• Now,we are using this DDT based insecticides since a very long time.

• In this long time period,the bedbugs may have gained the immunity power against such chemicals and the current generation of bedbugs got this immunity power naturally.

• This immunity power reduced the effects of the insecticides.